net/mac80211/cfg.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * mac80211 configuration hooks for cfg80211
   4  *
   5  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   6  * Copyright 2013-2015  Intel Mobile Communications GmbH
   7  * Copyright (C) 2015-2017 Intel Deutschland GmbH
   8  * Copyright (C) 2018-2022 Intel Corporation
   9  */
  10
  11 #include <linux/ieee80211.h>
  12 #include <linux/nl80211.h>
  13 #include <linux/rtnetlink.h>
  14 #include <linux/slab.h>
  15 #include <net/net_namespace.h>
  16 #include <linux/rcupdate.h>
  17 #include <linux/fips.h>
  18 #include <linux/if_ether.h>
  19 #include <net/cfg80211.h>
  20 #include "ieee80211_i.h"
  21 #include "driver-ops.h"
  22 #include "rate.h"
  23 #include "mesh.h"
  24 #include "wme.h"
  25
  26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
  27                                          struct vif_params *params)
  28 {
  29         bool mu_mimo_groups = false;
  30         bool mu_mimo_follow = false;
  31
  32         if (params->vht_mumimo_groups) {
  33                 u64 membership;
  34
  35                 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
  36
  37                 memcpy(sdata->vif.bss_conf.mu_group.membership,
  38                        params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  39                 memcpy(sdata->vif.bss_conf.mu_group.position,
  40                        params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  41                        WLAN_USER_POSITION_LEN);
  42                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
  43                                                   BSS_CHANGED_MU_GROUPS);
  44                 /* don't care about endianness - just check for 0 */
  45                 memcpy(&membership, params->vht_mumimo_groups,
  46                        WLAN_MEMBERSHIP_LEN);
  47                 mu_mimo_groups = membership != 0;
  48         }
  49
  50         if (params->vht_mumimo_follow_addr) {
  51                 mu_mimo_follow =
  52                         is_valid_ether_addr(params->vht_mumimo_follow_addr);
  53                 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
  54                                 params->vht_mumimo_follow_addr);
  55         }
  56
  57         sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
  58 }
  59
  60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
  61                                      struct vif_params *params)
  62 {
  63         struct ieee80211_local *local = sdata->local;
  64         struct ieee80211_sub_if_data *monitor_sdata;
  65
  66         /* check flags first */
  67         if (params->flags && ieee80211_sdata_running(sdata)) {
  68                 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
  69
  70                 /*
  71                  * Prohibit MONITOR_FLAG_COOK_FRAMES and
  72                  * MONITOR_FLAG_ACTIVE to be changed while the
  73                  * interface is up.
  74                  * Else we would need to add a lot of cruft
  75                  * to update everything:
  76                  *      cooked_mntrs, monitor and all fif_* counters
  77                  *      reconfigure hardware
  78                  */
  79                 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
  80                         return -EBUSY;
  81         }
  82
  83         /* also validate MU-MIMO change */
  84         monitor_sdata = wiphy_dereference(local->hw.wiphy,
  85                                           local->monitor_sdata);
  86
  87         if (!monitor_sdata &&
  88             (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
  89                 return -EOPNOTSUPP;
  90
  91         /* apply all changes now - no failures allowed */
  92
  93         if (monitor_sdata)
  94                 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
  95
  96         if (params->flags) {
  97                 if (ieee80211_sdata_running(sdata)) {
  98                         ieee80211_adjust_monitor_flags(sdata, -1);
  99                         sdata->u.mntr.flags = params->flags;
 100                         ieee80211_adjust_monitor_flags(sdata, 1);
 101
 102                         ieee80211_configure_filter(local);
 103                 } else {
 104                         /*
 105                          * Because the interface is down, ieee80211_do_stop
 106                          * and ieee80211_do_open take care of "everything"
 107                          * mentioned in the comment above.
 108                          */
 109                         sdata->u.mntr.flags = params->flags;
 110                 }
 111         }
 112
 113         return 0;
 114 }
 115
 116 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
 117                                            struct cfg80211_mbssid_config params,
 118                                            struct ieee80211_bss_conf *link_conf)
 119 {
 120         struct ieee80211_sub_if_data *tx_sdata;
 121
 122         sdata->vif.mbssid_tx_vif = NULL;
 123         link_conf->bssid_index = 0;
 124         link_conf->nontransmitted = false;
 125         link_conf->ema_ap = false;
 126
 127         if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev)
 128                 return -EINVAL;
 129
 130         tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev);
 131         if (!tx_sdata)
 132                 return -EINVAL;
 133
 134         if (tx_sdata == sdata) {
 135                 sdata->vif.mbssid_tx_vif = &sdata->vif;
 136         } else {
 137                 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
 138                 link_conf->nontransmitted = true;
 139                 link_conf->bssid_index = params.index;
 140         }
 141         if (params.ema)
 142                 link_conf->ema_ap = true;
 143
 144         return 0;
 145 }
 146
 147 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 148                                                 const char *name,
 149                                                 unsigned char name_assign_type,
 150                                                 enum nl80211_iftype type,
 151                                                 struct vif_params *params)
 152 {
 153         struct ieee80211_local *local = wiphy_priv(wiphy);
 154         struct wireless_dev *wdev;
 155         struct ieee80211_sub_if_data *sdata;
 156         int err;
 157
 158         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
 159         if (err)
 160                 return ERR_PTR(err);
 161
 162         sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 163
 164         if (type == NL80211_IFTYPE_MONITOR) {
 165                 err = ieee80211_set_mon_options(sdata, params);
 166                 if (err) {
 167                         ieee80211_if_remove(sdata);
 168                         return NULL;
 169                 }
 170         }
 171
 172         return wdev;
 173 }
 174
 175 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 176 {
 177         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
 178
 179         return 0;
 180 }
 181
 182 static int ieee80211_change_iface(struct wiphy *wiphy,
 183                                   struct net_device *dev,
 184                                   enum nl80211_iftype type,
 185                                   struct vif_params *params)
 186 {
 187         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 188         struct ieee80211_local *local = sdata->local;
 189         struct sta_info *sta;
 190         int ret;
 191
 192         ret = ieee80211_if_change_type(sdata, type);
 193         if (ret)
 194                 return ret;
 195
 196         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 197                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 198                 ieee80211_check_fast_rx_iface(sdata);
 199         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 200                 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 201
 202                 if (params->use_4addr == ifmgd->use_4addr)
 203                         return 0;
 204
 205                 sdata->u.mgd.use_4addr = params->use_4addr;
 206                 if (!ifmgd->associated)
 207                         return 0;
 208
 209                 mutex_lock(&local->sta_mtx);
 210                 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
 211                 if (sta)
 212                         drv_sta_set_4addr(local, sdata, &sta->sta,
 213                                           params->use_4addr);
 214                 mutex_unlock(&local->sta_mtx);
 215
 216                 if (params->use_4addr)
 217                         ieee80211_send_4addr_nullfunc(local, sdata);
 218         }
 219
 220         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 221                 ret = ieee80211_set_mon_options(sdata, params);
 222                 if (ret)
 223                         return ret;
 224         }
 225
 226         return 0;
 227 }
 228
 229 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 230                                       struct wireless_dev *wdev)
 231 {
 232         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 233         int ret;
 234
 235         mutex_lock(&sdata->local->chanctx_mtx);
 236         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 237         mutex_unlock(&sdata->local->chanctx_mtx);
 238         if (ret < 0)
 239                 return ret;
 240
 241         return ieee80211_do_open(wdev, true);
 242 }
 243
 244 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 245                                       struct wireless_dev *wdev)
 246 {
 247         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 248 }
 249
 250 static int ieee80211_start_nan(struct wiphy *wiphy,
 251                                struct wireless_dev *wdev,
 252                                struct cfg80211_nan_conf *conf)
 253 {
 254         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 255         int ret;
 256
 257         mutex_lock(&sdata->local->chanctx_mtx);
 258         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 259         mutex_unlock(&sdata->local->chanctx_mtx);
 260         if (ret < 0)
 261                 return ret;
 262
 263         ret = ieee80211_do_open(wdev, true);
 264         if (ret)
 265                 return ret;
 266
 267         ret = drv_start_nan(sdata->local, sdata, conf);
 268         if (ret)
 269                 ieee80211_sdata_stop(sdata);
 270
 271         sdata->u.nan.conf = *conf;
 272
 273         return ret;
 274 }
 275
 276 static void ieee80211_stop_nan(struct wiphy *wiphy,
 277                                struct wireless_dev *wdev)
 278 {
 279         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 280
 281         drv_stop_nan(sdata->local, sdata);
 282         ieee80211_sdata_stop(sdata);
 283 }
 284
 285 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 286                                      struct wireless_dev *wdev,
 287                                      struct cfg80211_nan_conf *conf,
 288                                      u32 changes)
 289 {
 290         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 291         struct cfg80211_nan_conf new_conf;
 292         int ret = 0;
 293
 294         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 295                 return -EOPNOTSUPP;
 296
 297         if (!ieee80211_sdata_running(sdata))
 298                 return -ENETDOWN;
 299
 300         new_conf = sdata->u.nan.conf;
 301
 302         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 303                 new_conf.master_pref = conf->master_pref;
 304
 305         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 306                 new_conf.bands = conf->bands;
 307
 308         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 309         if (!ret)
 310                 sdata->u.nan.conf = new_conf;
 311
 312         return ret;
 313 }
 314
 315 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 316                                   struct wireless_dev *wdev,
 317                                   struct cfg80211_nan_func *nan_func)
 318 {
 319         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 320         int ret;
 321
 322         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 323                 return -EOPNOTSUPP;
 324
 325         if (!ieee80211_sdata_running(sdata))
 326                 return -ENETDOWN;
 327
 328         spin_lock_bh(&sdata->u.nan.func_lock);
 329
 330         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 331                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 332                         GFP_ATOMIC);
 333         spin_unlock_bh(&sdata->u.nan.func_lock);
 334
 335         if (ret < 0)
 336                 return ret;
 337
 338         nan_func->instance_id = ret;
 339
 340         WARN_ON(nan_func->instance_id == 0);
 341
 342         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 343         if (ret) {
 344                 spin_lock_bh(&sdata->u.nan.func_lock);
 345                 idr_remove(&sdata->u.nan.function_inst_ids,
 346                            nan_func->instance_id);
 347                 spin_unlock_bh(&sdata->u.nan.func_lock);
 348         }
 349
 350         return ret;
 351 }
 352
 353 static struct cfg80211_nan_func *
 354 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 355                                   u64 cookie)
 356 {
 357         struct cfg80211_nan_func *func;
 358         int id;
 359
 360         lockdep_assert_held(&sdata->u.nan.func_lock);
 361
 362         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 363                 if (func->cookie == cookie)
 364                         return func;
 365         }
 366
 367         return NULL;
 368 }
 369
 370 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 371                                   struct wireless_dev *wdev, u64 cookie)
 372 {
 373         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 374         struct cfg80211_nan_func *func;
 375         u8 instance_id = 0;
 376
 377         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 378             !ieee80211_sdata_running(sdata))
 379                 return;
 380
 381         spin_lock_bh(&sdata->u.nan.func_lock);
 382
 383         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 384         if (func)
 385                 instance_id = func->instance_id;
 386
 387         spin_unlock_bh(&sdata->u.nan.func_lock);
 388
 389         if (instance_id)
 390                 drv_del_nan_func(sdata->local, sdata, instance_id);
 391 }
 392
 393 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 394                                   struct net_device *dev,
 395                                   u16 noack_map)
 396 {
 397         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 398
 399         sdata->noack_map = noack_map;
 400
 401         ieee80211_check_fast_xmit_iface(sdata);
 402
 403         return 0;
 404 }
 405
 406 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 407                             const u8 *mac_addr, u8 key_idx)
 408 {
 409         struct ieee80211_local *local = sdata->local;
 410         struct ieee80211_key *key;
 411         struct sta_info *sta;
 412         int ret = -EINVAL;
 413
 414         if (!wiphy_ext_feature_isset(local->hw.wiphy,
 415                                      NL80211_EXT_FEATURE_EXT_KEY_ID))
 416                 return -EINVAL;
 417
 418         sta = sta_info_get_bss(sdata, mac_addr);
 419
 420         if (!sta)
 421                 return -EINVAL;
 422
 423         if (sta->ptk_idx == key_idx)
 424                 return 0;
 425
 426         mutex_lock(&local->key_mtx);
 427         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 428
 429         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 430                 ret = ieee80211_set_tx_key(key);
 431
 432         mutex_unlock(&local->key_mtx);
 433         return ret;
 434 }
 435
 436 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 437                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 438                              struct key_params *params)
 439 {
 440         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 441         struct ieee80211_local *local = sdata->local;
 442         struct sta_info *sta = NULL;
 443         struct ieee80211_key *key;
 444         int err;
 445
 446         if (!ieee80211_sdata_running(sdata))
 447                 return -ENETDOWN;
 448
 449         if (pairwise && params->mode == NL80211_KEY_SET_TX)
 450                 return ieee80211_set_tx(sdata, mac_addr, key_idx);
 451
 452         /* reject WEP and TKIP keys if WEP failed to initialize */
 453         switch (params->cipher) {
 454         case WLAN_CIPHER_SUITE_WEP40:
 455         case WLAN_CIPHER_SUITE_TKIP:
 456         case WLAN_CIPHER_SUITE_WEP104:
 457                 if (WARN_ON_ONCE(fips_enabled))
 458                         return -EINVAL;
 459                 break;
 460         default:
 461                 break;
 462         }
 463
 464         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 465                                   params->key, params->seq_len, params->seq);
 466         if (IS_ERR(key))
 467                 return PTR_ERR(key);
 468
 469         if (pairwise)
 470                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 471
 472         if (params->mode == NL80211_KEY_NO_TX)
 473                 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
 474
 475         mutex_lock(&local->sta_mtx);
 476
 477         if (mac_addr) {
 478                 sta = sta_info_get_bss(sdata, mac_addr);
 479                 /*
 480                  * The ASSOC test makes sure the driver is ready to
 481                  * receive the key. When wpa_supplicant has roamed
 482                  * using FT, it attempts to set the key before
 483                  * association has completed, this rejects that attempt
 484                  * so it will set the key again after association.
 485                  *
 486                  * TODO: accept the key if we have a station entry and
 487                  *       add it to the device after the station.
 488                  */
 489                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 490                         ieee80211_key_free_unused(key);
 491                         err = -ENOENT;
 492                         goto out_unlock;
 493                 }
 494         }
 495
 496         switch (sdata->vif.type) {
 497         case NL80211_IFTYPE_STATION:
 498                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 499                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 500                 break;
 501         case NL80211_IFTYPE_AP:
 502         case NL80211_IFTYPE_AP_VLAN:
 503                 /* Keys without a station are used for TX only */
 504                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 505                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 506                 break;
 507         case NL80211_IFTYPE_ADHOC:
 508                 /* no MFP (yet) */
 509                 break;
 510         case NL80211_IFTYPE_MESH_POINT:
 511 #ifdef CONFIG_MAC80211_MESH
 512                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 513                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 514                 break;
 515 #endif
 516         case NL80211_IFTYPE_WDS:
 517         case NL80211_IFTYPE_MONITOR:
 518         case NL80211_IFTYPE_P2P_DEVICE:
 519         case NL80211_IFTYPE_NAN:
 520         case NL80211_IFTYPE_UNSPECIFIED:
 521         case NUM_NL80211_IFTYPES:
 522         case NL80211_IFTYPE_P2P_CLIENT:
 523         case NL80211_IFTYPE_P2P_GO:
 524         case NL80211_IFTYPE_OCB:
 525                 /* shouldn't happen */
 526                 WARN_ON_ONCE(1);
 527                 break;
 528         }
 529
 530         err = ieee80211_key_link(key, sdata, sta);
 531
 532  out_unlock:
 533         mutex_unlock(&local->sta_mtx);
 534
 535         return err;
 536 }
 537
 538 static struct ieee80211_key *
 539 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata,
 540                      u8 key_idx, bool pairwise, const u8 *mac_addr)
 541 {
 542         struct ieee80211_local *local = sdata->local;
 543         struct ieee80211_key *key;
 544         struct sta_info *sta;
 545
 546         if (mac_addr) {
 547                 sta = sta_info_get_bss(sdata, mac_addr);
 548                 if (!sta)
 549                         return NULL;
 550
 551                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 552                         return rcu_dereference_check_key_mtx(local,
 553                                                              sta->ptk[key_idx]);
 554
 555                 if (!pairwise &&
 556                     key_idx < NUM_DEFAULT_KEYS +
 557                               NUM_DEFAULT_MGMT_KEYS +
 558                               NUM_DEFAULT_BEACON_KEYS)
 559                         return rcu_dereference_check_key_mtx(local,
 560                                                              sta->deflink.gtk[key_idx]);
 561
 562                 return NULL;
 563         }
 564
 565         if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 566                 return rcu_dereference_check_key_mtx(local,
 567                                                      sdata->keys[key_idx]);
 568
 569         key = rcu_dereference_check_key_mtx(local, sdata->deflink.gtk[key_idx]);
 570         if (key)
 571                 return key;
 572
 573         /* or maybe it was a WEP key */
 574         if (key_idx < NUM_DEFAULT_KEYS)
 575                 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]);
 576
 577         return NULL;
 578 }
 579
 580 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 581                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 582 {
 583         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 584         struct ieee80211_local *local = sdata->local;
 585         struct ieee80211_key *key;
 586         int ret;
 587
 588         mutex_lock(&local->sta_mtx);
 589         mutex_lock(&local->key_mtx);
 590
 591         key = ieee80211_lookup_key(sdata, key_idx, pairwise, mac_addr);
 592         if (!key) {
 593                 ret = -ENOENT;
 594                 goto out_unlock;
 595         }
 596
 597         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 598
 599         ret = 0;
 600  out_unlock:
 601         mutex_unlock(&local->key_mtx);
 602         mutex_unlock(&local->sta_mtx);
 603
 604         return ret;
 605 }
 606
 607 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 608                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 609                              void *cookie,
 610                              void (*callback)(void *cookie,
 611                                               struct key_params *params))
 612 {
 613         struct ieee80211_sub_if_data *sdata;
 614         u8 seq[6] = {0};
 615         struct key_params params;
 616         struct ieee80211_key *key;
 617         u64 pn64;
 618         u32 iv32;
 619         u16 iv16;
 620         int err = -ENOENT;
 621         struct ieee80211_key_seq kseq = {};
 622
 623         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 624
 625         rcu_read_lock();
 626
 627         key = ieee80211_lookup_key(sdata, key_idx, pairwise, mac_addr);
 628         if (!key)
 629                 goto out;
 630
 631         memset(&params, 0, sizeof(params));
 632
 633         params.cipher = key->conf.cipher;
 634
 635         switch (key->conf.cipher) {
 636         case WLAN_CIPHER_SUITE_TKIP:
 637                 pn64 = atomic64_read(&key->conf.tx_pn);
 638                 iv32 = TKIP_PN_TO_IV32(pn64);
 639                 iv16 = TKIP_PN_TO_IV16(pn64);
 640
 641                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 642                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 643                         drv_get_key_seq(sdata->local, key, &kseq);
 644                         iv32 = kseq.tkip.iv32;
 645                         iv16 = kseq.tkip.iv16;
 646                 }
 647
 648                 seq[0] = iv16 & 0xff;
 649                 seq[1] = (iv16 >> 8) & 0xff;
 650                 seq[2] = iv32 & 0xff;
 651                 seq[3] = (iv32 >> 8) & 0xff;
 652                 seq[4] = (iv32 >> 16) & 0xff;
 653                 seq[5] = (iv32 >> 24) & 0xff;
 654                 params.seq = seq;
 655                 params.seq_len = 6;
 656                 break;
 657         case WLAN_CIPHER_SUITE_CCMP:
 658         case WLAN_CIPHER_SUITE_CCMP_256:
 659         case WLAN_CIPHER_SUITE_AES_CMAC:
 660         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 661                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 662                              offsetof(typeof(kseq), aes_cmac));
 663                 fallthrough;
 664         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 665         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 666                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 667                              offsetof(typeof(kseq), aes_gmac));
 668                 fallthrough;
 669         case WLAN_CIPHER_SUITE_GCMP:
 670         case WLAN_CIPHER_SUITE_GCMP_256:
 671                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 672                              offsetof(typeof(kseq), gcmp));
 673
 674                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 675                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 676                         drv_get_key_seq(sdata->local, key, &kseq);
 677                         memcpy(seq, kseq.ccmp.pn, 6);
 678                 } else {
 679                         pn64 = atomic64_read(&key->conf.tx_pn);
 680                         seq[0] = pn64;
 681                         seq[1] = pn64 >> 8;
 682                         seq[2] = pn64 >> 16;
 683                         seq[3] = pn64 >> 24;
 684                         seq[4] = pn64 >> 32;
 685                         seq[5] = pn64 >> 40;
 686                 }
 687                 params.seq = seq;
 688                 params.seq_len = 6;
 689                 break;
 690         default:
 691                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 692                         break;
 693                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 694                         break;
 695                 drv_get_key_seq(sdata->local, key, &kseq);
 696                 params.seq = kseq.hw.seq;
 697                 params.seq_len = kseq.hw.seq_len;
 698                 break;
 699         }
 700
 701         params.key = key->conf.key;
 702         params.key_len = key->conf.keylen;
 703
 704         callback(cookie, &params);
 705         err = 0;
 706
 707  out:
 708         rcu_read_unlock();
 709         return err;
 710 }
 711
 712 static int ieee80211_config_default_key(struct wiphy *wiphy,
 713                                         struct net_device *dev,
 714                                         u8 key_idx, bool uni,
 715                                         bool multi)
 716 {
 717         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 718
 719         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 720
 721         return 0;
 722 }
 723
 724 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 725                                              struct net_device *dev,
 726                                              u8 key_idx)
 727 {
 728         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 729
 730         ieee80211_set_default_mgmt_key(sdata, key_idx);
 731
 732         return 0;
 733 }
 734
 735 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 736                                                struct net_device *dev,
 737                                                u8 key_idx)
 738 {
 739         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 740
 741         ieee80211_set_default_beacon_key(sdata, key_idx);
 742
 743         return 0;
 744 }
 745
 746 void sta_set_rate_info_tx(struct sta_info *sta,
 747                           const struct ieee80211_tx_rate *rate,
 748                           struct rate_info *rinfo)
 749 {
 750         rinfo->flags = 0;
 751         if (rate->flags & IEEE80211_TX_RC_MCS) {
 752                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 753                 rinfo->mcs = rate->idx;
 754         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 755                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 756                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 757                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 758         } else {
 759                 struct ieee80211_supported_band *sband;
 760                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 761                 u16 brate;
 762
 763                 sband = ieee80211_get_sband(sta->sdata);
 764                 WARN_ON_ONCE(sband && !sband->bitrates);
 765                 if (sband && sband->bitrates) {
 766                         brate = sband->bitrates[rate->idx].bitrate;
 767                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 768                 }
 769         }
 770         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 771                 rinfo->bw = RATE_INFO_BW_40;
 772         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 773                 rinfo->bw = RATE_INFO_BW_80;
 774         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 775                 rinfo->bw = RATE_INFO_BW_160;
 776         else
 777                 rinfo->bw = RATE_INFO_BW_20;
 778         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 779                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 780 }
 781
 782 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 783                                   int idx, u8 *mac, struct station_info *sinfo)
 784 {
 785         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 786         struct ieee80211_local *local = sdata->local;
 787         struct sta_info *sta;
 788         int ret = -ENOENT;
 789
 790         mutex_lock(&local->sta_mtx);
 791
 792         sta = sta_info_get_by_idx(sdata, idx);
 793         if (sta) {
 794                 ret = 0;
 795                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 796                 sta_set_sinfo(sta, sinfo, true);
 797         }
 798
 799         mutex_unlock(&local->sta_mtx);
 800
 801         return ret;
 802 }
 803
 804 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 805                                  int idx, struct survey_info *survey)
 806 {
 807         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 808
 809         return drv_get_survey(local, idx, survey);
 810 }
 811
 812 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 813                                  const u8 *mac, struct station_info *sinfo)
 814 {
 815         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 816         struct ieee80211_local *local = sdata->local;
 817         struct sta_info *sta;
 818         int ret = -ENOENT;
 819
 820         mutex_lock(&local->sta_mtx);
 821
 822         sta = sta_info_get_bss(sdata, mac);
 823         if (sta) {
 824                 ret = 0;
 825                 sta_set_sinfo(sta, sinfo, true);
 826         }
 827
 828         mutex_unlock(&local->sta_mtx);
 829
 830         return ret;
 831 }
 832
 833 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 834                                          struct cfg80211_chan_def *chandef)
 835 {
 836         struct ieee80211_local *local = wiphy_priv(wiphy);
 837         struct ieee80211_sub_if_data *sdata;
 838         int ret = 0;
 839
 840         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 841                 return 0;
 842
 843         mutex_lock(&local->mtx);
 844         if (local->use_chanctx) {
 845                 sdata = wiphy_dereference(local->hw.wiphy,
 846                                           local->monitor_sdata);
 847                 if (sdata) {
 848                         ieee80211_link_release_channel(&sdata->deflink);
 849                         ret = ieee80211_link_use_channel(&sdata->deflink,
 850                                                          chandef,
 851                                                          IEEE80211_CHANCTX_EXCLUSIVE);
 852                 }
 853         } else if (local->open_count == local->monitors) {
 854                 local->_oper_chandef = *chandef;
 855                 ieee80211_hw_config(local, 0);
 856         }
 857
 858         if (ret == 0)
 859                 local->monitor_chandef = *chandef;
 860         mutex_unlock(&local->mtx);
 861
 862         return ret;
 863 }
 864
 865 static int
 866 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 867                          const u8 *resp, size_t resp_len,
 868                          const struct ieee80211_csa_settings *csa,
 869                          const struct ieee80211_color_change_settings *cca,
 870                          struct ieee80211_link_data *link)
 871 {
 872         struct probe_resp *new, *old;
 873
 874         if (!resp || !resp_len)
 875                 return 1;
 876
 877         old = sdata_dereference(link->u.ap.probe_resp, sdata);
 878
 879         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 880         if (!new)
 881                 return -ENOMEM;
 882
 883         new->len = resp_len;
 884         memcpy(new->data, resp, resp_len);
 885
 886         if (csa)
 887                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 888                        csa->n_counter_offsets_presp *
 889                        sizeof(new->cntdwn_counter_offsets[0]));
 890         else if (cca)
 891                 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
 892
 893         rcu_assign_pointer(link->u.ap.probe_resp, new);
 894         if (old)
 895                 kfree_rcu(old, rcu_head);
 896
 897         return 0;
 898 }
 899
 900 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 901                                         struct cfg80211_fils_discovery *params,
 902                                         struct ieee80211_link_data *link,
 903                                         struct ieee80211_bss_conf *link_conf)
 904 {
 905         struct fils_discovery_data *new, *old = NULL;
 906         struct ieee80211_fils_discovery *fd;
 907
 908         if (!params->tmpl || !params->tmpl_len)
 909                 return -EINVAL;
 910
 911         fd = &link_conf->fils_discovery;
 912         fd->min_interval = params->min_interval;
 913         fd->max_interval = params->max_interval;
 914
 915         old = sdata_dereference(link->u.ap.fils_discovery, sdata);
 916         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 917         if (!new)
 918                 return -ENOMEM;
 919         new->len = params->tmpl_len;
 920         memcpy(new->data, params->tmpl, params->tmpl_len);
 921         rcu_assign_pointer(link->u.ap.fils_discovery, new);
 922
 923         if (old)
 924                 kfree_rcu(old, rcu_head);
 925
 926         return 0;
 927 }
 928
 929 static int
 930 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 931                                      struct cfg80211_unsol_bcast_probe_resp *params,
 932                                      struct ieee80211_link_data *link,
 933                                      struct ieee80211_bss_conf *link_conf)
 934 {
 935         struct unsol_bcast_probe_resp_data *new, *old = NULL;
 936
 937         if (!params->tmpl || !params->tmpl_len)
 938                 return -EINVAL;
 939
 940         old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
 941         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 942         if (!new)
 943                 return -ENOMEM;
 944         new->len = params->tmpl_len;
 945         memcpy(new->data, params->tmpl, params->tmpl_len);
 946         rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
 947
 948         if (old)
 949                 kfree_rcu(old, rcu_head);
 950
 951         link_conf->unsol_bcast_probe_resp_interval = params->interval;
 952
 953         return 0;
 954 }
 955
 956 static int ieee80211_set_ftm_responder_params(
 957                                 struct ieee80211_sub_if_data *sdata,
 958                                 const u8 *lci, size_t lci_len,
 959                                 const u8 *civicloc, size_t civicloc_len,
 960                                 struct ieee80211_bss_conf *link_conf)
 961 {
 962         struct ieee80211_ftm_responder_params *new, *old;
 963         u8 *pos;
 964         int len;
 965
 966         if (!lci_len && !civicloc_len)
 967                 return 0;
 968
 969         old = link_conf->ftmr_params;
 970         len = lci_len + civicloc_len;
 971
 972         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 973         if (!new)
 974                 return -ENOMEM;
 975
 976         pos = (u8 *)(new + 1);
 977         if (lci_len) {
 978                 new->lci_len = lci_len;
 979                 new->lci = pos;
 980                 memcpy(pos, lci, lci_len);
 981                 pos += lci_len;
 982         }
 983
 984         if (civicloc_len) {
 985                 new->civicloc_len = civicloc_len;
 986                 new->civicloc = pos;
 987                 memcpy(pos, civicloc, civicloc_len);
 988                 pos += civicloc_len;
 989         }
 990
 991         link_conf->ftmr_params = new;
 992         kfree(old);
 993
 994         return 0;
 995 }
 996
 997 static int
 998 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
 999                              struct cfg80211_mbssid_elems *src)
1000 {
1001         int i, offset = 0;
1002
1003         for (i = 0; i < src->cnt; i++) {
1004                 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1005                 dst->elem[i].len = src->elem[i].len;
1006                 dst->elem[i].data = pos + offset;
1007                 offset += dst->elem[i].len;
1008         }
1009         dst->cnt = src->cnt;
1010
1011         return offset;
1012 }
1013
1014 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1015                                    struct ieee80211_link_data *link,
1016                                    struct cfg80211_beacon_data *params,
1017                                    const struct ieee80211_csa_settings *csa,
1018                                    const struct ieee80211_color_change_settings *cca)
1019 {
1020         struct cfg80211_mbssid_elems *mbssid = NULL;
1021         struct beacon_data *new, *old;
1022         int new_head_len, new_tail_len;
1023         int size, err;
1024         u32 changed = BSS_CHANGED_BEACON;
1025         struct ieee80211_bss_conf *link_conf = link->conf;
1026
1027         old = sdata_dereference(link->u.ap.beacon, sdata);
1028
1029         /* Need to have a beacon head if we don't have one yet */
1030         if (!params->head && !old)
1031                 return -EINVAL;
1032
1033         /* new or old head? */
1034         if (params->head)
1035                 new_head_len = params->head_len;
1036         else
1037                 new_head_len = old->head_len;
1038
1039         /* new or old tail? */
1040         if (params->tail || !old)
1041                 /* params->tail_len will be zero for !params->tail */
1042                 new_tail_len = params->tail_len;
1043         else
1044                 new_tail_len = old->tail_len;
1045
1046         size = sizeof(*new) + new_head_len + new_tail_len;
1047
1048         /* new or old multiple BSSID elements? */
1049         if (params->mbssid_ies) {
1050                 mbssid = params->mbssid_ies;
1051                 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1052                 size += ieee80211_get_mbssid_beacon_len(mbssid);
1053         } else if (old && old->mbssid_ies) {
1054                 mbssid = old->mbssid_ies;
1055                 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1056                 size += ieee80211_get_mbssid_beacon_len(mbssid);
1057         }
1058
1059         new = kzalloc(size, GFP_KERNEL);
1060         if (!new)
1061                 return -ENOMEM;
1062
1063         /* start filling the new info now */
1064
1065         /*
1066          * pointers go into the block we allocated,
1067          * memory is | beacon_data | head | tail | mbssid_ies
1068          */
1069         new->head = ((u8 *) new) + sizeof(*new);
1070         new->tail = new->head + new_head_len;
1071         new->head_len = new_head_len;
1072         new->tail_len = new_tail_len;
1073         /* copy in optional mbssid_ies */
1074         if (mbssid) {
1075                 u8 *pos = new->tail + new->tail_len;
1076
1077                 new->mbssid_ies = (void *)pos;
1078                 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1079                 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid);
1080                 /* update bssid_indicator */
1081                 link_conf->bssid_indicator =
1082                         ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1083         }
1084
1085         if (csa) {
1086                 new->cntdwn_current_counter = csa->count;
1087                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1088                        csa->n_counter_offsets_beacon *
1089                        sizeof(new->cntdwn_counter_offsets[0]));
1090         } else if (cca) {
1091                 new->cntdwn_current_counter = cca->count;
1092                 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1093         }
1094
1095         /* copy in head */
1096         if (params->head)
1097                 memcpy(new->head, params->head, new_head_len);
1098         else
1099                 memcpy(new->head, old->head, new_head_len);
1100
1101         /* copy in optional tail */
1102         if (params->tail)
1103                 memcpy(new->tail, params->tail, new_tail_len);
1104         else
1105                 if (old)
1106                         memcpy(new->tail, old->tail, new_tail_len);
1107
1108         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1109                                        params->probe_resp_len, csa, cca, link);
1110         if (err < 0) {
1111                 kfree(new);
1112                 return err;
1113         }
1114         if (err == 0)
1115                 changed |= BSS_CHANGED_AP_PROBE_RESP;
1116
1117         if (params->ftm_responder != -1) {
1118                 link_conf->ftm_responder = params->ftm_responder;
1119                 err = ieee80211_set_ftm_responder_params(sdata,
1120                                                          params->lci,
1121                                                          params->lci_len,
1122                                                          params->civicloc,
1123                                                          params->civicloc_len,
1124                                                          link_conf);
1125
1126                 if (err < 0) {
1127                         kfree(new);
1128                         return err;
1129                 }
1130
1131                 changed |= BSS_CHANGED_FTM_RESPONDER;
1132         }
1133
1134         rcu_assign_pointer(link->u.ap.beacon, new);
1135         sdata->u.ap.active = true;
1136
1137         if (old)
1138                 kfree_rcu(old, rcu_head);
1139
1140         return changed;
1141 }
1142
1143 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1144                               struct cfg80211_ap_settings *params)
1145 {
1146         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1147         struct ieee80211_local *local = sdata->local;
1148         struct beacon_data *old;
1149         struct ieee80211_sub_if_data *vlan;
1150         u32 changed = BSS_CHANGED_BEACON_INT |
1151                       BSS_CHANGED_BEACON_ENABLED |
1152                       BSS_CHANGED_BEACON |
1153                       BSS_CHANGED_P2P_PS |
1154                       BSS_CHANGED_TXPOWER |
1155                       BSS_CHANGED_TWT;
1156         int i, err;
1157         int prev_beacon_int;
1158         unsigned int link_id = params->beacon.link_id;
1159         struct ieee80211_link_data *link;
1160         struct ieee80211_bss_conf *link_conf;
1161
1162         link = sdata_dereference(sdata->link[link_id], sdata);
1163         if (!link)
1164                 return -ENOLINK;
1165
1166         link_conf = link->conf;
1167
1168         old = sdata_dereference(link->u.ap.beacon, sdata);
1169         if (old)
1170                 return -EALREADY;
1171
1172         if (params->smps_mode != NL80211_SMPS_OFF)
1173                 return -ENOTSUPP;
1174
1175         link->smps_mode = IEEE80211_SMPS_OFF;
1176
1177         link->needed_rx_chains = sdata->local->rx_chains;
1178
1179         prev_beacon_int = link_conf->beacon_int;
1180         link_conf->beacon_int = params->beacon_interval;
1181
1182         if (params->he_cap && params->he_oper) {
1183                 link_conf->he_support = true;
1184                 link_conf->htc_trig_based_pkt_ext =
1185                         le32_get_bits(params->he_oper->he_oper_params,
1186                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1187                 link_conf->frame_time_rts_th =
1188                         le32_get_bits(params->he_oper->he_oper_params,
1189                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1190                 changed |= BSS_CHANGED_HE_OBSS_PD;
1191
1192                 if (params->beacon.he_bss_color.enabled)
1193                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1194         }
1195
1196         if (sdata->vif.type == NL80211_IFTYPE_AP &&
1197             params->mbssid_config.tx_wdev) {
1198                 err = ieee80211_set_ap_mbssid_options(sdata,
1199                                                       params->mbssid_config,
1200                                                       link_conf);
1201                 if (err)
1202                         return err;
1203         }
1204
1205         mutex_lock(&local->mtx);
1206         err = ieee80211_link_use_channel(link, &params->chandef,
1207                                          IEEE80211_CHANCTX_SHARED);
1208         if (!err)
1209                 ieee80211_link_copy_chanctx_to_vlans(link, false);
1210         mutex_unlock(&local->mtx);
1211         if (err) {
1212                 link_conf->beacon_int = prev_beacon_int;
1213                 return err;
1214         }
1215
1216         /*
1217          * Apply control port protocol, this allows us to
1218          * not encrypt dynamic WEP control frames.
1219          */
1220         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1221         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1222         sdata->control_port_over_nl80211 =
1223                                 params->crypto.control_port_over_nl80211;
1224         sdata->control_port_no_preauth =
1225                                 params->crypto.control_port_no_preauth;
1226
1227         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1228                 vlan->control_port_protocol =
1229                         params->crypto.control_port_ethertype;
1230                 vlan->control_port_no_encrypt =
1231                         params->crypto.control_port_no_encrypt;
1232                 vlan->control_port_over_nl80211 =
1233                         params->crypto.control_port_over_nl80211;
1234                 vlan->control_port_no_preauth =
1235                         params->crypto.control_port_no_preauth;
1236         }
1237
1238         link_conf->dtim_period = params->dtim_period;
1239         link_conf->enable_beacon = true;
1240         link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1241         link_conf->twt_responder = params->twt_responder;
1242         link_conf->he_obss_pd = params->he_obss_pd;
1243         link_conf->he_bss_color = params->beacon.he_bss_color;
1244         sdata->vif.cfg.s1g = params->chandef.chan->band ==
1245                                   NL80211_BAND_S1GHZ;
1246
1247         sdata->vif.cfg.ssid_len = params->ssid_len;
1248         if (params->ssid_len)
1249                 memcpy(sdata->vif.cfg.ssid, params->ssid,
1250                        params->ssid_len);
1251         link_conf->hidden_ssid =
1252                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1253
1254         memset(&link_conf->p2p_noa_attr, 0,
1255                sizeof(link_conf->p2p_noa_attr));
1256         link_conf->p2p_noa_attr.oppps_ctwindow =
1257                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1258         if (params->p2p_opp_ps)
1259                 link_conf->p2p_noa_attr.oppps_ctwindow |=
1260                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1261
1262         sdata->beacon_rate_set = false;
1263         if (wiphy_ext_feature_isset(local->hw.wiphy,
1264                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1265                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1266                         sdata->beacon_rateidx_mask[i] =
1267                                 params->beacon_rate.control[i].legacy;
1268                         if (sdata->beacon_rateidx_mask[i])
1269                                 sdata->beacon_rate_set = true;
1270                 }
1271         }
1272
1273         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1274                 link_conf->beacon_tx_rate = params->beacon_rate;
1275
1276         err = ieee80211_assign_beacon(sdata, link, &params->beacon, NULL, NULL);
1277         if (err < 0)
1278                 goto error;
1279         changed |= err;
1280
1281         if (params->fils_discovery.max_interval) {
1282                 err = ieee80211_set_fils_discovery(sdata,
1283                                                    &params->fils_discovery,
1284                                                    link, link_conf);
1285                 if (err < 0)
1286                         goto error;
1287                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1288         }
1289
1290         if (params->unsol_bcast_probe_resp.interval) {
1291                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1292                                                            &params->unsol_bcast_probe_resp,
1293                                                            link, link_conf);
1294                 if (err < 0)
1295                         goto error;
1296                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1297         }
1298
1299         err = drv_start_ap(sdata->local, sdata, link_conf);
1300         if (err) {
1301                 old = sdata_dereference(link->u.ap.beacon, sdata);
1302
1303                 if (old)
1304                         kfree_rcu(old, rcu_head);
1305                 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1306                 sdata->u.ap.active = false;
1307                 goto error;
1308         }
1309
1310         ieee80211_recalc_dtim(local, sdata);
1311         ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1312         ieee80211_link_info_change_notify(sdata, link, changed);
1313
1314         netif_carrier_on(dev);
1315         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1316                 netif_carrier_on(vlan->dev);
1317
1318         return 0;
1319
1320 error:
1321         mutex_lock(&local->mtx);
1322         ieee80211_link_release_channel(link);
1323         mutex_unlock(&local->mtx);
1324
1325         return err;
1326 }
1327
1328 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1329                                    struct cfg80211_beacon_data *params)
1330 {
1331         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1332         struct ieee80211_link_data *link;
1333         struct beacon_data *old;
1334         int err;
1335         struct ieee80211_bss_conf *link_conf;
1336
1337         sdata_assert_lock(sdata);
1338
1339         link = sdata_dereference(sdata->link[params->link_id], sdata);
1340         if (!link)
1341                 return -ENOLINK;
1342
1343         link_conf = link->conf;
1344
1345         /* don't allow changing the beacon while a countdown is in place - offset
1346          * of channel switch counter may change
1347          */
1348         if (link_conf->csa_active || link_conf->color_change_active)
1349                 return -EBUSY;
1350
1351         old = sdata_dereference(link->u.ap.beacon, sdata);
1352         if (!old)
1353                 return -ENOENT;
1354
1355         err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL);
1356         if (err < 0)
1357                 return err;
1358
1359         if (params->he_bss_color_valid &&
1360             params->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1361                 link_conf->he_bss_color.enabled = params->he_bss_color.enabled;
1362                 err |= BSS_CHANGED_HE_BSS_COLOR;
1363         }
1364
1365         ieee80211_link_info_change_notify(sdata, link, err);
1366         return 0;
1367 }
1368
1369 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1370 {
1371         if (!link->u.ap.next_beacon)
1372                 return;
1373
1374         kfree(link->u.ap.next_beacon->mbssid_ies);
1375         kfree(link->u.ap.next_beacon);
1376         link->u.ap.next_beacon = NULL;
1377 }
1378
1379 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1380                              unsigned int link_id)
1381 {
1382         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1383         struct ieee80211_sub_if_data *vlan;
1384         struct ieee80211_local *local = sdata->local;
1385         struct beacon_data *old_beacon;
1386         struct probe_resp *old_probe_resp;
1387         struct fils_discovery_data *old_fils_discovery;
1388         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1389         struct cfg80211_chan_def chandef;
1390         struct ieee80211_link_data *link =
1391                 sdata_dereference(sdata->link[link_id], sdata);
1392         struct ieee80211_bss_conf *link_conf = link->conf;
1393
1394         sdata_assert_lock(sdata);
1395
1396         old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1397         if (!old_beacon)
1398                 return -ENOENT;
1399         old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1400                                            sdata);
1401         old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1402                                                sdata);
1403         old_unsol_bcast_probe_resp =
1404                 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1405                                   sdata);
1406
1407         /* abort any running channel switch */
1408         mutex_lock(&local->mtx);
1409         link_conf->csa_active = false;
1410         if (link->csa_block_tx) {
1411                 ieee80211_wake_vif_queues(local, sdata,
1412                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1413                 link->csa_block_tx = false;
1414         }
1415
1416         mutex_unlock(&local->mtx);
1417
1418         ieee80211_free_next_beacon(link);
1419
1420         /* turn off carrier for this interface and dependent VLANs */
1421         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1422                 netif_carrier_off(vlan->dev);
1423         netif_carrier_off(dev);
1424
1425         /* remove beacon and probe response */
1426         sdata->u.ap.active = false;
1427         RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1428         RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1429         RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1430         RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1431         kfree_rcu(old_beacon, rcu_head);
1432         if (old_probe_resp)
1433                 kfree_rcu(old_probe_resp, rcu_head);
1434         if (old_fils_discovery)
1435                 kfree_rcu(old_fils_discovery, rcu_head);
1436         if (old_unsol_bcast_probe_resp)
1437                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1438
1439         kfree(link_conf->ftmr_params);
1440         link_conf->ftmr_params = NULL;
1441
1442         __sta_info_flush(sdata, true);
1443         ieee80211_free_keys(sdata, true);
1444
1445         link_conf->enable_beacon = false;
1446         sdata->beacon_rate_set = false;
1447         sdata->vif.cfg.ssid_len = 0;
1448         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1449         ieee80211_link_info_change_notify(sdata, link,
1450                                           BSS_CHANGED_BEACON_ENABLED);
1451
1452         if (sdata->wdev.cac_started) {
1453                 chandef = link_conf->chandef;
1454                 cancel_delayed_work_sync(&link->dfs_cac_timer_work);
1455                 cfg80211_cac_event(sdata->dev, &chandef,
1456                                    NL80211_RADAR_CAC_ABORTED,
1457                                    GFP_KERNEL);
1458         }
1459
1460         drv_stop_ap(sdata->local, sdata, link_conf);
1461
1462         /* free all potentially still buffered bcast frames */
1463         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1464         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1465
1466         mutex_lock(&local->mtx);
1467         ieee80211_link_copy_chanctx_to_vlans(link, true);
1468         ieee80211_link_release_channel(link);
1469         mutex_unlock(&local->mtx);
1470
1471         return 0;
1472 }
1473
1474 static int sta_apply_auth_flags(struct ieee80211_local *local,
1475                                 struct sta_info *sta,
1476                                 u32 mask, u32 set)
1477 {
1478         int ret;
1479
1480         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1481             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1482             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1483                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1484                 if (ret)
1485                         return ret;
1486         }
1487
1488         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1489             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1490             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1491                 /*
1492                  * When peer becomes associated, init rate control as
1493                  * well. Some drivers require rate control initialized
1494                  * before drv_sta_state() is called.
1495                  */
1496                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1497                         rate_control_rate_init(sta);
1498
1499                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1500                 if (ret)
1501                         return ret;
1502         }
1503
1504         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1505                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1506                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1507                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1508                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1509                 else
1510                         ret = 0;
1511                 if (ret)
1512                         return ret;
1513         }
1514
1515         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1516             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1517             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1518                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1519                 if (ret)
1520                         return ret;
1521         }
1522
1523         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1524             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1525             test_sta_flag(sta, WLAN_STA_AUTH)) {
1526                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1527                 if (ret)
1528                         return ret;
1529         }
1530
1531         return 0;
1532 }
1533
1534 static void sta_apply_mesh_params(struct ieee80211_local *local,
1535                                   struct sta_info *sta,
1536                                   struct station_parameters *params)
1537 {
1538 #ifdef CONFIG_MAC80211_MESH
1539         struct ieee80211_sub_if_data *sdata = sta->sdata;
1540         u32 changed = 0;
1541
1542         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1543                 switch (params->plink_state) {
1544                 case NL80211_PLINK_ESTAB:
1545                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1546                                 changed = mesh_plink_inc_estab_count(sdata);
1547                         sta->mesh->plink_state = params->plink_state;
1548                         sta->mesh->aid = params->peer_aid;
1549
1550                         ieee80211_mps_sta_status_update(sta);
1551                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1552                                       sdata->u.mesh.mshcfg.power_mode);
1553
1554                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1555                         /* init at low value */
1556                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1557
1558                         break;
1559                 case NL80211_PLINK_LISTEN:
1560                 case NL80211_PLINK_BLOCKED:
1561                 case NL80211_PLINK_OPN_SNT:
1562                 case NL80211_PLINK_OPN_RCVD:
1563                 case NL80211_PLINK_CNF_RCVD:
1564                 case NL80211_PLINK_HOLDING:
1565                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1566                                 changed = mesh_plink_dec_estab_count(sdata);
1567                         sta->mesh->plink_state = params->plink_state;
1568
1569                         ieee80211_mps_sta_status_update(sta);
1570                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1571                                         NL80211_MESH_POWER_UNKNOWN);
1572                         break;
1573                 default:
1574                         /*  nothing  */
1575                         break;
1576                 }
1577         }
1578
1579         switch (params->plink_action) {
1580         case NL80211_PLINK_ACTION_NO_ACTION:
1581                 /* nothing */
1582                 break;
1583         case NL80211_PLINK_ACTION_OPEN:
1584                 changed |= mesh_plink_open(sta);
1585                 break;
1586         case NL80211_PLINK_ACTION_BLOCK:
1587                 changed |= mesh_plink_block(sta);
1588                 break;
1589         }
1590
1591         if (params->local_pm)
1592                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1593                                                           params->local_pm);
1594
1595         ieee80211_mbss_info_change_notify(sdata, changed);
1596 #endif
1597 }
1598
1599 static int sta_link_apply_parameters(struct ieee80211_local *local,
1600                                      struct sta_info *sta, bool new_link,
1601                                      struct link_station_parameters *params)
1602 {
1603         int ret = 0;
1604         struct ieee80211_supported_band *sband;
1605         struct ieee80211_sub_if_data *sdata = sta->sdata;
1606         u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1607         struct ieee80211_link_data *link =
1608                 sdata_dereference(sdata->link[link_id], sdata);
1609         struct link_sta_info *link_sta =
1610                 rcu_dereference_protected(sta->link[link_id],
1611                                           lockdep_is_held(&local->sta_mtx));
1612
1613         if (!link || !link_sta)
1614                 return -EINVAL;
1615
1616         sband = ieee80211_get_link_sband(link);
1617         if (!sband)
1618                 return -EINVAL;
1619
1620         if (params->link_mac) {
1621                 if (new_link) {
1622                         memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1623                         memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1624                 } else if (!ether_addr_equal(link_sta->addr,
1625                                              params->link_mac)) {
1626                         return -EINVAL;
1627                 }
1628         }
1629
1630         if (params->txpwr_set) {
1631                 link_sta->pub->txpwr.type = params->txpwr.type;
1632                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1633                         link_sta->pub->txpwr.power = params->txpwr.power;
1634                 ret = drv_sta_set_txpwr(local, sdata, sta);
1635                 if (ret)
1636                         return ret;
1637         }
1638
1639         if (params->supported_rates &&
1640             params->supported_rates_len) {
1641                 ieee80211_parse_bitrates(link->conf->chandef.width,
1642                                          sband, params->supported_rates,
1643                                          params->supported_rates_len,
1644                                          &link_sta->pub->supp_rates[sband->band]);
1645         }
1646
1647         if (params->ht_capa)
1648                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1649                                                   params->ht_capa, link_sta);
1650
1651         /* VHT can override some HT caps such as the A-MSDU max length */
1652         if (params->vht_capa)
1653                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1654                                                     params->vht_capa, link_sta);
1655
1656         if (params->he_capa)
1657                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1658                                                   (void *)params->he_capa,
1659                                                   params->he_capa_len,
1660                                                   (void *)params->he_6ghz_capa,
1661                                                   link_sta);
1662
1663         if (params->eht_capa)
1664                 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1665                                                     (u8 *)params->he_capa,
1666                                                     params->he_capa_len,
1667                                                     params->eht_capa,
1668                                                     params->eht_capa_len,
1669                                                     link_sta);
1670
1671         if (params->opmode_notif_used) {
1672                 /* returned value is only needed for rc update, but the
1673                  * rc isn't initialized here yet, so ignore it
1674                  */
1675                 __ieee80211_vht_handle_opmode(sdata, link_sta,
1676                                               params->opmode_notif,
1677                                               sband->band);
1678         }
1679
1680         return ret;
1681 }
1682
1683 static int sta_apply_parameters(struct ieee80211_local *local,
1684                                 struct sta_info *sta,
1685                                 struct station_parameters *params)
1686 {
1687         struct ieee80211_sub_if_data *sdata = sta->sdata;
1688         u32 mask, set;
1689         int ret = 0;
1690
1691         mask = params->sta_flags_mask;
1692         set = params->sta_flags_set;
1693
1694         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1695                 /*
1696                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1697                  * API but must follow AUTHENTICATED for driver state.
1698                  */
1699                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1700                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1701                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1702                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1703         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1704                 /*
1705                  * TDLS -- everything follows authorized, but
1706                  * only becoming authorized is possible, not
1707                  * going back
1708                  */
1709                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1710                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1711                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1712                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1713                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1714                 }
1715         }
1716
1717         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1718             local->hw.queues >= IEEE80211_NUM_ACS)
1719                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1720
1721         /* auth flags will be set later for TDLS,
1722          * and for unassociated stations that move to associated */
1723         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1724             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1725               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1726                 ret = sta_apply_auth_flags(local, sta, mask, set);
1727                 if (ret)
1728                         return ret;
1729         }
1730
1731         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1732                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1733                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1734                 else
1735                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1736         }
1737
1738         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1739                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1740                 if (set & BIT(NL80211_STA_FLAG_MFP))
1741                         set_sta_flag(sta, WLAN_STA_MFP);
1742                 else
1743                         clear_sta_flag(sta, WLAN_STA_MFP);
1744         }
1745
1746         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1747                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1748                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1749                 else
1750                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1751         }
1752
1753         /* mark TDLS channel switch support, if the AP allows it */
1754         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1755             !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1756             params->ext_capab_len >= 4 &&
1757             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1758                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1759
1760         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1761             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1762             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1763             params->ext_capab_len >= 8 &&
1764             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1765                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1766
1767         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1768                 sta->sta.uapsd_queues = params->uapsd_queues;
1769                 sta->sta.max_sp = params->max_sp;
1770         }
1771
1772         ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
1773                                               params->ext_capab_len);
1774
1775         /*
1776          * cfg80211 validates this (1-2007) and allows setting the AID
1777          * only when creating a new station entry
1778          */
1779         if (params->aid)
1780                 sta->sta.aid = params->aid;
1781
1782         /*
1783          * Some of the following updates would be racy if called on an
1784          * existing station, via ieee80211_change_station(). However,
1785          * all such changes are rejected by cfg80211 except for updates
1786          * changing the supported rates on an existing but not yet used
1787          * TDLS peer.
1788          */
1789
1790         if (params->listen_interval >= 0)
1791                 sta->listen_interval = params->listen_interval;
1792
1793         ret = sta_link_apply_parameters(local, sta, false,
1794                                         &params->link_sta_params);
1795         if (ret)
1796                 return ret;
1797
1798         if (params->support_p2p_ps >= 0)
1799                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1800
1801         if (ieee80211_vif_is_mesh(&sdata->vif))
1802                 sta_apply_mesh_params(local, sta, params);
1803
1804         if (params->airtime_weight)
1805                 sta->airtime_weight = params->airtime_weight;
1806
1807         /* set the STA state after all sta info from usermode has been set */
1808         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1809             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1810                 ret = sta_apply_auth_flags(local, sta, mask, set);
1811                 if (ret)
1812                         return ret;
1813         }
1814
1815         /* Mark the STA as MLO if MLD MAC address is available */
1816         if (params->link_sta_params.mld_mac)
1817                 sta->sta.mlo = true;
1818
1819         return 0;
1820 }
1821
1822 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1823                                  const u8 *mac,
1824                                  struct station_parameters *params)
1825 {
1826         struct ieee80211_local *local = wiphy_priv(wiphy);
1827         struct sta_info *sta;
1828         struct ieee80211_sub_if_data *sdata;
1829         int err;
1830
1831         if (params->vlan) {
1832                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1833
1834                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1835                     sdata->vif.type != NL80211_IFTYPE_AP)
1836                         return -EINVAL;
1837         } else
1838                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1839
1840         if (ether_addr_equal(mac, sdata->vif.addr))
1841                 return -EINVAL;
1842
1843         if (!is_valid_ether_addr(mac))
1844                 return -EINVAL;
1845
1846         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1847             sdata->vif.type == NL80211_IFTYPE_STATION &&
1848             !sdata->u.mgd.associated)
1849                 return -EINVAL;
1850
1851         /*
1852          * If we have a link ID, it can be a non-MLO station on an AP MLD,
1853          * but we need to have a link_mac in that case as well, so use the
1854          * STA's MAC address in that case.
1855          */
1856         if (params->link_sta_params.link_id >= 0)
1857                 sta = sta_info_alloc_with_link(sdata, mac,
1858                                                params->link_sta_params.link_id,
1859                                                params->link_sta_params.link_mac ?: mac,
1860                                                GFP_KERNEL);
1861         else
1862                 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1863
1864         if (!sta)
1865                 return -ENOMEM;
1866
1867         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1868                 sta->sta.tdls = true;
1869
1870         /* Though the mutex is not needed here (since the station is not
1871          * visible yet), sta_apply_parameters (and inner functions) require
1872          * the mutex due to other paths.
1873          */
1874         mutex_lock(&local->sta_mtx);
1875         err = sta_apply_parameters(local, sta, params);
1876         mutex_unlock(&local->sta_mtx);
1877         if (err) {
1878                 sta_info_free(local, sta);
1879                 return err;
1880         }
1881
1882         /*
1883          * for TDLS and for unassociated station, rate control should be
1884          * initialized only when rates are known and station is marked
1885          * authorized/associated
1886          */
1887         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1888             test_sta_flag(sta, WLAN_STA_ASSOC))
1889                 rate_control_rate_init(sta);
1890
1891         return sta_info_insert(sta);
1892 }
1893
1894 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1895                                  struct station_del_parameters *params)
1896 {
1897         struct ieee80211_sub_if_data *sdata;
1898
1899         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1900
1901         if (params->mac)
1902                 return sta_info_destroy_addr_bss(sdata, params->mac);
1903
1904         sta_info_flush(sdata);
1905         return 0;
1906 }
1907
1908 static int ieee80211_change_station(struct wiphy *wiphy,
1909                                     struct net_device *dev, const u8 *mac,
1910                                     struct station_parameters *params)
1911 {
1912         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1913         struct ieee80211_local *local = wiphy_priv(wiphy);
1914         struct sta_info *sta;
1915         struct ieee80211_sub_if_data *vlansdata;
1916         enum cfg80211_station_type statype;
1917         int err;
1918
1919         mutex_lock(&local->sta_mtx);
1920
1921         sta = sta_info_get_bss(sdata, mac);
1922         if (!sta) {
1923                 err = -ENOENT;
1924                 goto out_err;
1925         }
1926
1927         switch (sdata->vif.type) {
1928         case NL80211_IFTYPE_MESH_POINT:
1929                 if (sdata->u.mesh.user_mpm)
1930                         statype = CFG80211_STA_MESH_PEER_USER;
1931                 else
1932                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1933                 break;
1934         case NL80211_IFTYPE_ADHOC:
1935                 statype = CFG80211_STA_IBSS;
1936                 break;
1937         case NL80211_IFTYPE_STATION:
1938                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1939                         statype = CFG80211_STA_AP_STA;
1940                         break;
1941                 }
1942                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1943                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1944                 else
1945                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1946                 break;
1947         case NL80211_IFTYPE_AP:
1948         case NL80211_IFTYPE_AP_VLAN:
1949                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1950                         statype = CFG80211_STA_AP_CLIENT;
1951                 else
1952                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1953                 break;
1954         default:
1955                 err = -EOPNOTSUPP;
1956                 goto out_err;
1957         }
1958
1959         err = cfg80211_check_station_change(wiphy, params, statype);
1960         if (err)
1961                 goto out_err;
1962
1963         if (params->vlan && params->vlan != sta->sdata->dev) {
1964                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1965
1966                 if (params->vlan->ieee80211_ptr->use_4addr) {
1967                         if (vlansdata->u.vlan.sta) {
1968                                 err = -EBUSY;
1969                                 goto out_err;
1970                         }
1971
1972                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1973                         __ieee80211_check_fast_rx_iface(vlansdata);
1974                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1975                 }
1976
1977                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1978                     sta->sdata->u.vlan.sta) {
1979                         ieee80211_clear_fast_rx(sta);
1980                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1981                 }
1982
1983                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1984                         ieee80211_vif_dec_num_mcast(sta->sdata);
1985
1986                 sta->sdata = vlansdata;
1987                 ieee80211_check_fast_xmit(sta);
1988
1989                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1990                         ieee80211_vif_inc_num_mcast(sta->sdata);
1991                         cfg80211_send_layer2_update(sta->sdata->dev,
1992                                                     sta->sta.addr);
1993                 }
1994         }
1995
1996         /* we use sta_info_get_bss() so this might be different */
1997         if (sdata != sta->sdata) {
1998                 mutex_lock_nested(&sta->sdata->wdev.mtx, 1);
1999                 err = sta_apply_parameters(local, sta, params);
2000                 mutex_unlock(&sta->sdata->wdev.mtx);
2001         } else {
2002                 err = sta_apply_parameters(local, sta, params);
2003         }
2004         if (err)
2005                 goto out_err;
2006
2007         mutex_unlock(&local->sta_mtx);
2008
2009         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2010             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2011                 ieee80211_recalc_ps(local);
2012                 ieee80211_recalc_ps_vif(sdata);
2013         }
2014
2015         return 0;
2016 out_err:
2017         mutex_unlock(&local->sta_mtx);
2018         return err;
2019 }
2020
2021 #ifdef CONFIG_MAC80211_MESH
2022 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2023                                const u8 *dst, const u8 *next_hop)
2024 {
2025         struct ieee80211_sub_if_data *sdata;
2026         struct mesh_path *mpath;
2027         struct sta_info *sta;
2028
2029         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2030
2031         rcu_read_lock();
2032         sta = sta_info_get(sdata, next_hop);
2033         if (!sta) {
2034                 rcu_read_unlock();
2035                 return -ENOENT;
2036         }
2037
2038         mpath = mesh_path_add(sdata, dst);
2039         if (IS_ERR(mpath)) {
2040                 rcu_read_unlock();
2041                 return PTR_ERR(mpath);
2042         }
2043
2044         mesh_path_fix_nexthop(mpath, sta);
2045
2046         rcu_read_unlock();
2047         return 0;
2048 }
2049
2050 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2051                                const u8 *dst)
2052 {
2053         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2054
2055         if (dst)
2056                 return mesh_path_del(sdata, dst);
2057
2058         mesh_path_flush_by_iface(sdata);
2059         return 0;
2060 }
2061
2062 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2063                                   const u8 *dst, const u8 *next_hop)
2064 {
2065         struct ieee80211_sub_if_data *sdata;
2066         struct mesh_path *mpath;
2067         struct sta_info *sta;
2068
2069         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2070
2071         rcu_read_lock();
2072
2073         sta = sta_info_get(sdata, next_hop);
2074         if (!sta) {
2075                 rcu_read_unlock();
2076                 return -ENOENT;
2077         }
2078
2079         mpath = mesh_path_lookup(sdata, dst);
2080         if (!mpath) {
2081                 rcu_read_unlock();
2082                 return -ENOENT;
2083         }
2084
2085         mesh_path_fix_nexthop(mpath, sta);
2086
2087         rcu_read_unlock();
2088         return 0;
2089 }
2090
2091 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2092                             struct mpath_info *pinfo)
2093 {
2094         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2095
2096         if (next_hop_sta)
2097                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2098         else
2099                 eth_zero_addr(next_hop);
2100
2101         memset(pinfo, 0, sizeof(*pinfo));
2102
2103         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2104
2105         pinfo->filled = MPATH_INFO_FRAME_QLEN |
2106                         MPATH_INFO_SN |
2107                         MPATH_INFO_METRIC |
2108                         MPATH_INFO_EXPTIME |
2109                         MPATH_INFO_DISCOVERY_TIMEOUT |
2110                         MPATH_INFO_DISCOVERY_RETRIES |
2111                         MPATH_INFO_FLAGS |
2112                         MPATH_INFO_HOP_COUNT |
2113                         MPATH_INFO_PATH_CHANGE;
2114
2115         pinfo->frame_qlen = mpath->frame_queue.qlen;
2116         pinfo->sn = mpath->sn;
2117         pinfo->metric = mpath->metric;
2118         if (time_before(jiffies, mpath->exp_time))
2119                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2120         pinfo->discovery_timeout =
2121                         jiffies_to_msecs(mpath->discovery_timeout);
2122         pinfo->discovery_retries = mpath->discovery_retries;
2123         if (mpath->flags & MESH_PATH_ACTIVE)
2124                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2125         if (mpath->flags & MESH_PATH_RESOLVING)
2126                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2127         if (mpath->flags & MESH_PATH_SN_VALID)
2128                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2129         if (mpath->flags & MESH_PATH_FIXED)
2130                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2131         if (mpath->flags & MESH_PATH_RESOLVED)
2132                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2133         pinfo->hop_count = mpath->hop_count;
2134         pinfo->path_change_count = mpath->path_change_count;
2135 }
2136
2137 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2138                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2139
2140 {
2141         struct ieee80211_sub_if_data *sdata;
2142         struct mesh_path *mpath;
2143
2144         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2145
2146         rcu_read_lock();
2147         mpath = mesh_path_lookup(sdata, dst);
2148         if (!mpath) {
2149                 rcu_read_unlock();
2150                 return -ENOENT;
2151         }
2152         memcpy(dst, mpath->dst, ETH_ALEN);
2153         mpath_set_pinfo(mpath, next_hop, pinfo);
2154         rcu_read_unlock();
2155         return 0;
2156 }
2157
2158 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2159                                 int idx, u8 *dst, u8 *next_hop,
2160                                 struct mpath_info *pinfo)
2161 {
2162         struct ieee80211_sub_if_data *sdata;
2163         struct mesh_path *mpath;
2164
2165         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2166
2167         rcu_read_lock();
2168         mpath = mesh_path_lookup_by_idx(sdata, idx);
2169         if (!mpath) {
2170                 rcu_read_unlock();
2171                 return -ENOENT;
2172         }
2173         memcpy(dst, mpath->dst, ETH_ALEN);
2174         mpath_set_pinfo(mpath, next_hop, pinfo);
2175         rcu_read_unlock();
2176         return 0;
2177 }
2178
2179 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2180                           struct mpath_info *pinfo)
2181 {
2182         memset(pinfo, 0, sizeof(*pinfo));
2183         memcpy(mpp, mpath->mpp, ETH_ALEN);
2184
2185         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2186 }
2187
2188 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2189                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2190
2191 {
2192         struct ieee80211_sub_if_data *sdata;
2193         struct mesh_path *mpath;
2194
2195         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2196
2197         rcu_read_lock();
2198         mpath = mpp_path_lookup(sdata, dst);
2199         if (!mpath) {
2200                 rcu_read_unlock();
2201                 return -ENOENT;
2202         }
2203         memcpy(dst, mpath->dst, ETH_ALEN);
2204         mpp_set_pinfo(mpath, mpp, pinfo);
2205         rcu_read_unlock();
2206         return 0;
2207 }
2208
2209 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2210                               int idx, u8 *dst, u8 *mpp,
2211                               struct mpath_info *pinfo)
2212 {
2213         struct ieee80211_sub_if_data *sdata;
2214         struct mesh_path *mpath;
2215
2216         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2217
2218         rcu_read_lock();
2219         mpath = mpp_path_lookup_by_idx(sdata, idx);
2220         if (!mpath) {
2221                 rcu_read_unlock();
2222                 return -ENOENT;
2223         }
2224         memcpy(dst, mpath->dst, ETH_ALEN);
2225         mpp_set_pinfo(mpath, mpp, pinfo);
2226         rcu_read_unlock();
2227         return 0;
2228 }
2229
2230 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2231                                 struct net_device *dev,
2232                                 struct mesh_config *conf)
2233 {
2234         struct ieee80211_sub_if_data *sdata;
2235         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2236
2237         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2238         return 0;
2239 }
2240
2241 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2242 {
2243         return (mask >> (parm-1)) & 0x1;
2244 }
2245
2246 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2247                 const struct mesh_setup *setup)
2248 {
2249         u8 *new_ie;
2250         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2251                                         struct ieee80211_sub_if_data, u.mesh);
2252         int i;
2253
2254         /* allocate information elements */
2255         new_ie = NULL;
2256
2257         if (setup->ie_len) {
2258                 new_ie = kmemdup(setup->ie, setup->ie_len,
2259                                 GFP_KERNEL);
2260                 if (!new_ie)
2261                         return -ENOMEM;
2262         }
2263         ifmsh->ie_len = setup->ie_len;
2264         ifmsh->ie = new_ie;
2265
2266         /* now copy the rest of the setup parameters */
2267         ifmsh->mesh_id_len = setup->mesh_id_len;
2268         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2269         ifmsh->mesh_sp_id = setup->sync_method;
2270         ifmsh->mesh_pp_id = setup->path_sel_proto;
2271         ifmsh->mesh_pm_id = setup->path_metric;
2272         ifmsh->user_mpm = setup->user_mpm;
2273         ifmsh->mesh_auth_id = setup->auth_id;
2274         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2275         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2276         if (setup->is_authenticated)
2277                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2278         if (setup->is_secure)
2279                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2280
2281         /* mcast rate setting in Mesh Node */
2282         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2283                                                 sizeof(setup->mcast_rate));
2284         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2285
2286         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2287         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2288
2289         sdata->beacon_rate_set = false;
2290         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2291                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2292                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2293                         sdata->beacon_rateidx_mask[i] =
2294                                 setup->beacon_rate.control[i].legacy;
2295                         if (sdata->beacon_rateidx_mask[i])
2296                                 sdata->beacon_rate_set = true;
2297                 }
2298         }
2299
2300         return 0;
2301 }
2302
2303 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2304                                         struct net_device *dev, u32 mask,
2305                                         const struct mesh_config *nconf)
2306 {
2307         struct mesh_config *conf;
2308         struct ieee80211_sub_if_data *sdata;
2309         struct ieee80211_if_mesh *ifmsh;
2310
2311         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2312         ifmsh = &sdata->u.mesh;
2313
2314         /* Set the config options which we are interested in setting */
2315         conf = &(sdata->u.mesh.mshcfg);
2316         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2317                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2318         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2319                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2320         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2321                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2322         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2323                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2324         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2325                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2326         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2327                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2328         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2329                 conf->element_ttl = nconf->element_ttl;
2330         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2331                 if (ifmsh->user_mpm)
2332                         return -EBUSY;
2333                 conf->auto_open_plinks = nconf->auto_open_plinks;
2334         }
2335         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2336                 conf->dot11MeshNbrOffsetMaxNeighbor =
2337                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2338         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2339                 conf->dot11MeshHWMPmaxPREQretries =
2340                         nconf->dot11MeshHWMPmaxPREQretries;
2341         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2342                 conf->path_refresh_time = nconf->path_refresh_time;
2343         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2344                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2345         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2346                 conf->dot11MeshHWMPactivePathTimeout =
2347                         nconf->dot11MeshHWMPactivePathTimeout;
2348         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2349                 conf->dot11MeshHWMPpreqMinInterval =
2350                         nconf->dot11MeshHWMPpreqMinInterval;
2351         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2352                 conf->dot11MeshHWMPperrMinInterval =
2353                         nconf->dot11MeshHWMPperrMinInterval;
2354         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2355                            mask))
2356                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2357                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2358         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2359                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2360                 ieee80211_mesh_root_setup(ifmsh);
2361         }
2362         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2363                 /* our current gate announcement implementation rides on root
2364                  * announcements, so require this ifmsh to also be a root node
2365                  * */
2366                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2367                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2368                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2369                         ieee80211_mesh_root_setup(ifmsh);
2370                 }
2371                 conf->dot11MeshGateAnnouncementProtocol =
2372                         nconf->dot11MeshGateAnnouncementProtocol;
2373         }
2374         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2375                 conf->dot11MeshHWMPRannInterval =
2376                         nconf->dot11MeshHWMPRannInterval;
2377         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2378                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2379         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2380                 /* our RSSI threshold implementation is supported only for
2381                  * devices that report signal in dBm.
2382                  */
2383                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2384                         return -ENOTSUPP;
2385                 conf->rssi_threshold = nconf->rssi_threshold;
2386         }
2387         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2388                 conf->ht_opmode = nconf->ht_opmode;
2389                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2390                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2391                                                   BSS_CHANGED_HT);
2392         }
2393         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2394                 conf->dot11MeshHWMPactivePathToRootTimeout =
2395                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2396         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2397                 conf->dot11MeshHWMProotInterval =
2398                         nconf->dot11MeshHWMProotInterval;
2399         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2400                 conf->dot11MeshHWMPconfirmationInterval =
2401                         nconf->dot11MeshHWMPconfirmationInterval;
2402         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2403                 conf->power_mode = nconf->power_mode;
2404                 ieee80211_mps_local_status_update(sdata);
2405         }
2406         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2407                 conf->dot11MeshAwakeWindowDuration =
2408                         nconf->dot11MeshAwakeWindowDuration;
2409         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2410                 conf->plink_timeout = nconf->plink_timeout;
2411         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2412                 conf->dot11MeshConnectedToMeshGate =
2413                         nconf->dot11MeshConnectedToMeshGate;
2414         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2415                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2416         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2417                 conf->dot11MeshConnectedToAuthServer =
2418                         nconf->dot11MeshConnectedToAuthServer;
2419         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2420         return 0;
2421 }
2422
2423 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2424                                const struct mesh_config *conf,
2425                                const struct mesh_setup *setup)
2426 {
2427         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2428         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2429         int err;
2430
2431         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2432         err = copy_mesh_setup(ifmsh, setup);
2433         if (err)
2434                 return err;
2435
2436         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2437
2438         /* can mesh use other SMPS modes? */
2439         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2440         sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2441
2442         mutex_lock(&sdata->local->mtx);
2443         err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
2444                                          IEEE80211_CHANCTX_SHARED);
2445         mutex_unlock(&sdata->local->mtx);
2446         if (err)
2447                 return err;
2448
2449         return ieee80211_start_mesh(sdata);
2450 }
2451
2452 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2453 {
2454         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2455
2456         ieee80211_stop_mesh(sdata);
2457         mutex_lock(&sdata->local->mtx);
2458         ieee80211_link_release_channel(&sdata->deflink);
2459         kfree(sdata->u.mesh.ie);
2460         mutex_unlock(&sdata->local->mtx);
2461
2462         return 0;
2463 }
2464 #endif
2465
2466 static int ieee80211_change_bss(struct wiphy *wiphy,
2467                                 struct net_device *dev,
2468                                 struct bss_parameters *params)
2469 {
2470         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2471         struct ieee80211_supported_band *sband;
2472         u32 changed = 0;
2473
2474         if (!sdata_dereference(sdata->deflink.u.ap.beacon, sdata))
2475                 return -ENOENT;
2476
2477         sband = ieee80211_get_sband(sdata);
2478         if (!sband)
2479                 return -EINVAL;
2480
2481         if (params->use_cts_prot >= 0) {
2482                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2483                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2484         }
2485         if (params->use_short_preamble >= 0) {
2486                 sdata->vif.bss_conf.use_short_preamble =
2487                         params->use_short_preamble;
2488                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2489         }
2490
2491         if (!sdata->vif.bss_conf.use_short_slot &&
2492             (sband->band == NL80211_BAND_5GHZ ||
2493              sband->band == NL80211_BAND_6GHZ)) {
2494                 sdata->vif.bss_conf.use_short_slot = true;
2495                 changed |= BSS_CHANGED_ERP_SLOT;
2496         }
2497
2498         if (params->use_short_slot_time >= 0) {
2499                 sdata->vif.bss_conf.use_short_slot =
2500                         params->use_short_slot_time;
2501                 changed |= BSS_CHANGED_ERP_SLOT;
2502         }
2503
2504         if (params->basic_rates) {
2505                 ieee80211_parse_bitrates(sdata->vif.bss_conf.chandef.width,
2506                                          wiphy->bands[sband->band],
2507                                          params->basic_rates,
2508                                          params->basic_rates_len,
2509                                          &sdata->vif.bss_conf.basic_rates);
2510                 changed |= BSS_CHANGED_BASIC_RATES;
2511                 ieee80211_check_rate_mask(&sdata->deflink);
2512         }
2513
2514         if (params->ap_isolate >= 0) {
2515                 if (params->ap_isolate)
2516                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2517                 else
2518                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2519                 ieee80211_check_fast_rx_iface(sdata);
2520         }
2521
2522         if (params->ht_opmode >= 0) {
2523                 sdata->vif.bss_conf.ht_operation_mode =
2524                         (u16) params->ht_opmode;
2525                 changed |= BSS_CHANGED_HT;
2526         }
2527
2528         if (params->p2p_ctwindow >= 0) {
2529                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2530                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2531                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2532                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2533                 changed |= BSS_CHANGED_P2P_PS;
2534         }
2535
2536         if (params->p2p_opp_ps > 0) {
2537                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2538                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2539                 changed |= BSS_CHANGED_P2P_PS;
2540         } else if (params->p2p_opp_ps == 0) {
2541                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2542                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2543                 changed |= BSS_CHANGED_P2P_PS;
2544         }
2545
2546         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
2547
2548         return 0;
2549 }
2550
2551 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2552                                     struct net_device *dev,
2553                                     struct ieee80211_txq_params *params)
2554 {
2555         struct ieee80211_local *local = wiphy_priv(wiphy);
2556         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2557         struct ieee80211_link_data *link = &sdata->deflink;
2558         struct ieee80211_tx_queue_params p;
2559
2560         if (!local->ops->conf_tx)
2561                 return -EOPNOTSUPP;
2562
2563         if (local->hw.queues < IEEE80211_NUM_ACS)
2564                 return -EOPNOTSUPP;
2565
2566         memset(&p, 0, sizeof(p));
2567         p.aifs = params->aifs;
2568         p.cw_max = params->cwmax;
2569         p.cw_min = params->cwmin;
2570         p.txop = params->txop;
2571
2572         /*
2573          * Setting tx queue params disables u-apsd because it's only
2574          * called in master mode.
2575          */
2576         p.uapsd = false;
2577
2578         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2579
2580         link->tx_conf[params->ac] = p;
2581         if (drv_conf_tx(local, link, params->ac, &p)) {
2582                 wiphy_debug(local->hw.wiphy,
2583                             "failed to set TX queue parameters for AC %d\n",
2584                             params->ac);
2585                 return -EINVAL;
2586         }
2587
2588         ieee80211_link_info_change_notify(sdata, link,
2589                                           BSS_CHANGED_QOS);
2590
2591         return 0;
2592 }
2593
2594 #ifdef CONFIG_PM
2595 static int ieee80211_suspend(struct wiphy *wiphy,
2596                              struct cfg80211_wowlan *wowlan)
2597 {
2598         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2599 }
2600
2601 static int ieee80211_resume(struct wiphy *wiphy)
2602 {
2603         return __ieee80211_resume(wiphy_priv(wiphy));
2604 }
2605 #else
2606 #define ieee80211_suspend NULL
2607 #define ieee80211_resume NULL
2608 #endif
2609
2610 static int ieee80211_scan(struct wiphy *wiphy,
2611                           struct cfg80211_scan_request *req)
2612 {
2613         struct ieee80211_sub_if_data *sdata;
2614
2615         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2616
2617         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2618         case NL80211_IFTYPE_STATION:
2619         case NL80211_IFTYPE_ADHOC:
2620         case NL80211_IFTYPE_MESH_POINT:
2621         case NL80211_IFTYPE_P2P_CLIENT:
2622         case NL80211_IFTYPE_P2P_DEVICE:
2623                 break;
2624         case NL80211_IFTYPE_P2P_GO:
2625                 if (sdata->local->ops->hw_scan)
2626                         break;
2627                 /*
2628                  * FIXME: implement NoA while scanning in software,
2629                  * for now fall through to allow scanning only when
2630                  * beaconing hasn't been configured yet
2631                  */
2632                 fallthrough;
2633         case NL80211_IFTYPE_AP:
2634                 /*
2635                  * If the scan has been forced (and the driver supports
2636                  * forcing), don't care about being beaconing already.
2637                  * This will create problems to the attached stations (e.g. all
2638                  * the  frames sent while scanning on other channel will be
2639                  * lost)
2640                  */
2641                 if (sdata->deflink.u.ap.beacon &&
2642                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2643                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2644                         return -EOPNOTSUPP;
2645                 break;
2646         case NL80211_IFTYPE_NAN:
2647         default:
2648                 return -EOPNOTSUPP;
2649         }
2650
2651         return ieee80211_request_scan(sdata, req);
2652 }
2653
2654 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2655 {
2656         ieee80211_scan_cancel(wiphy_priv(wiphy));
2657 }
2658
2659 static int
2660 ieee80211_sched_scan_start(struct wiphy *wiphy,
2661                            struct net_device *dev,
2662                            struct cfg80211_sched_scan_request *req)
2663 {
2664         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2665
2666         if (!sdata->local->ops->sched_scan_start)
2667                 return -EOPNOTSUPP;
2668
2669         return ieee80211_request_sched_scan_start(sdata, req);
2670 }
2671
2672 static int
2673 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2674                           u64 reqid)
2675 {
2676         struct ieee80211_local *local = wiphy_priv(wiphy);
2677
2678         if (!local->ops->sched_scan_stop)
2679                 return -EOPNOTSUPP;
2680
2681         return ieee80211_request_sched_scan_stop(local);
2682 }
2683
2684 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2685                           struct cfg80211_auth_request *req)
2686 {
2687         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2688 }
2689
2690 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2691                            struct cfg80211_assoc_request *req)
2692 {
2693         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2694 }
2695
2696 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2697                             struct cfg80211_deauth_request *req)
2698 {
2699         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2700 }
2701
2702 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2703                               struct cfg80211_disassoc_request *req)
2704 {
2705         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2706 }
2707
2708 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2709                                struct cfg80211_ibss_params *params)
2710 {
2711         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2712 }
2713
2714 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2715 {
2716         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2717 }
2718
2719 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2720                               struct ocb_setup *setup)
2721 {
2722         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2723 }
2724
2725 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2726 {
2727         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2728 }
2729
2730 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2731                                     int rate[NUM_NL80211_BANDS])
2732 {
2733         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2734
2735         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2736                sizeof(int) * NUM_NL80211_BANDS);
2737
2738         ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2739                                           BSS_CHANGED_MCAST_RATE);
2740
2741         return 0;
2742 }
2743
2744 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2745 {
2746         struct ieee80211_local *local = wiphy_priv(wiphy);
2747         int err;
2748
2749         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2750                 ieee80211_check_fast_xmit_all(local);
2751
2752                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2753
2754                 if (err) {
2755                         ieee80211_check_fast_xmit_all(local);
2756                         return err;
2757                 }
2758         }
2759
2760         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2761             (changed & WIPHY_PARAM_DYN_ACK)) {
2762                 s16 coverage_class;
2763
2764                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2765                                         wiphy->coverage_class : -1;
2766                 err = drv_set_coverage_class(local, coverage_class);
2767
2768                 if (err)
2769                         return err;
2770         }
2771
2772         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2773                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2774
2775                 if (err)
2776                         return err;
2777         }
2778
2779         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2780                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2781                         return -EINVAL;
2782                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2783         }
2784         if (changed & WIPHY_PARAM_RETRY_LONG) {
2785                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2786                         return -EINVAL;
2787                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2788         }
2789         if (changed &
2790             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2791                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2792
2793         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2794                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2795                        WIPHY_PARAM_TXQ_QUANTUM))
2796                 ieee80211_txq_set_params(local);
2797
2798         return 0;
2799 }
2800
2801 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2802                                   struct wireless_dev *wdev,
2803                                   enum nl80211_tx_power_setting type, int mbm)
2804 {
2805         struct ieee80211_local *local = wiphy_priv(wiphy);
2806         struct ieee80211_sub_if_data *sdata;
2807         enum nl80211_tx_power_setting txp_type = type;
2808         bool update_txp_type = false;
2809         bool has_monitor = false;
2810
2811         if (wdev) {
2812                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2813
2814                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2815                         sdata = wiphy_dereference(local->hw.wiphy,
2816                                                   local->monitor_sdata);
2817                         if (!sdata)
2818                                 return -EOPNOTSUPP;
2819                 }
2820
2821                 switch (type) {
2822                 case NL80211_TX_POWER_AUTOMATIC:
2823                         sdata->deflink.user_power_level =
2824                                 IEEE80211_UNSET_POWER_LEVEL;
2825                         txp_type = NL80211_TX_POWER_LIMITED;
2826                         break;
2827                 case NL80211_TX_POWER_LIMITED:
2828                 case NL80211_TX_POWER_FIXED:
2829                         if (mbm < 0 || (mbm % 100))
2830                                 return -EOPNOTSUPP;
2831                         sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
2832                         break;
2833                 }
2834
2835                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2836                         update_txp_type = true;
2837                         sdata->vif.bss_conf.txpower_type = txp_type;
2838                 }
2839
2840                 ieee80211_recalc_txpower(sdata, update_txp_type);
2841
2842                 return 0;
2843         }
2844
2845         switch (type) {
2846         case NL80211_TX_POWER_AUTOMATIC:
2847                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2848                 txp_type = NL80211_TX_POWER_LIMITED;
2849                 break;
2850         case NL80211_TX_POWER_LIMITED:
2851         case NL80211_TX_POWER_FIXED:
2852                 if (mbm < 0 || (mbm % 100))
2853                         return -EOPNOTSUPP;
2854                 local->user_power_level = MBM_TO_DBM(mbm);
2855                 break;
2856         }
2857
2858         mutex_lock(&local->iflist_mtx);
2859         list_for_each_entry(sdata, &local->interfaces, list) {
2860                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2861                         has_monitor = true;
2862                         continue;
2863                 }
2864                 sdata->deflink.user_power_level = local->user_power_level;
2865                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2866                         update_txp_type = true;
2867                 sdata->vif.bss_conf.txpower_type = txp_type;
2868         }
2869         list_for_each_entry(sdata, &local->interfaces, list) {
2870                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2871                         continue;
2872                 ieee80211_recalc_txpower(sdata, update_txp_type);
2873         }
2874         mutex_unlock(&local->iflist_mtx);
2875
2876         if (has_monitor) {
2877                 sdata = wiphy_dereference(local->hw.wiphy,
2878                                           local->monitor_sdata);
2879                 if (sdata) {
2880                         sdata->deflink.user_power_level = local->user_power_level;
2881                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2882                                 update_txp_type = true;
2883                         sdata->vif.bss_conf.txpower_type = txp_type;
2884
2885                         ieee80211_recalc_txpower(sdata, update_txp_type);
2886                 }
2887         }
2888
2889         return 0;
2890 }
2891
2892 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2893                                   struct wireless_dev *wdev,
2894                                   int *dbm)
2895 {
2896         struct ieee80211_local *local = wiphy_priv(wiphy);
2897         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2898
2899         if (local->ops->get_txpower)
2900                 return drv_get_txpower(local, sdata, dbm);
2901
2902         if (!local->use_chanctx)
2903                 *dbm = local->hw.conf.power_level;
2904         else
2905                 *dbm = sdata->vif.bss_conf.txpower;
2906
2907         return 0;
2908 }
2909
2910 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2911 {
2912         struct ieee80211_local *local = wiphy_priv(wiphy);
2913
2914         drv_rfkill_poll(local);
2915 }
2916
2917 #ifdef CONFIG_NL80211_TESTMODE
2918 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2919                                   struct wireless_dev *wdev,
2920                                   void *data, int len)
2921 {
2922         struct ieee80211_local *local = wiphy_priv(wiphy);
2923         struct ieee80211_vif *vif = NULL;
2924
2925         if (!local->ops->testmode_cmd)
2926                 return -EOPNOTSUPP;
2927
2928         if (wdev) {
2929                 struct ieee80211_sub_if_data *sdata;
2930
2931                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2932                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2933                         vif = &sdata->vif;
2934         }
2935
2936         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2937 }
2938
2939 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2940                                    struct sk_buff *skb,
2941                                    struct netlink_callback *cb,
2942                                    void *data, int len)
2943 {
2944         struct ieee80211_local *local = wiphy_priv(wiphy);
2945
2946         if (!local->ops->testmode_dump)
2947                 return -EOPNOTSUPP;
2948
2949         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2950 }
2951 #endif
2952
2953 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2954                                  struct ieee80211_link_data *link,
2955                                  enum ieee80211_smps_mode smps_mode)
2956 {
2957         const u8 *ap;
2958         enum ieee80211_smps_mode old_req;
2959         int err;
2960         struct sta_info *sta;
2961         bool tdls_peer_found = false;
2962
2963         lockdep_assert_held(&sdata->wdev.mtx);
2964
2965         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2966                 return -EINVAL;
2967
2968         old_req = link->u.mgd.req_smps;
2969         link->u.mgd.req_smps = smps_mode;
2970
2971         if (old_req == smps_mode &&
2972             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2973                 return 0;
2974
2975         /*
2976          * If not associated, or current association is not an HT
2977          * association, there's no need to do anything, just store
2978          * the new value until we associate.
2979          */
2980         if (!sdata->u.mgd.associated ||
2981             link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2982                 return 0;
2983
2984         ap = link->u.mgd.bssid;
2985
2986         rcu_read_lock();
2987         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2988                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2989                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2990                         continue;
2991
2992                 tdls_peer_found = true;
2993                 break;
2994         }
2995         rcu_read_unlock();
2996
2997         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2998                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2999                         smps_mode = IEEE80211_SMPS_OFF;
3000                 else
3001                         smps_mode = IEEE80211_SMPS_DYNAMIC;
3002         }
3003
3004         /* send SM PS frame to AP */
3005         err = ieee80211_send_smps_action(sdata, smps_mode,
3006                                          ap, ap);
3007         if (err)
3008                 link->u.mgd.req_smps = old_req;
3009         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3010                 ieee80211_teardown_tdls_peers(sdata);
3011
3012         return err;
3013 }
3014
3015 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3016                                     bool enabled, int timeout)
3017 {
3018         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3019         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3020         unsigned int link_id;
3021
3022         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3023                 return -EOPNOTSUPP;
3024
3025         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3026                 return -EOPNOTSUPP;
3027
3028         if (enabled == sdata->u.mgd.powersave &&
3029             timeout == local->dynamic_ps_forced_timeout)
3030                 return 0;
3031
3032         sdata->u.mgd.powersave = enabled;
3033         local->dynamic_ps_forced_timeout = timeout;
3034
3035         /* no change, but if automatic follow powersave */
3036         sdata_lock(sdata);
3037         for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3038                 struct ieee80211_link_data *link;
3039
3040                 link = sdata_dereference(sdata->link[link_id], sdata);
3041
3042                 if (!link)
3043                         continue;
3044                 __ieee80211_request_smps_mgd(sdata, link,
3045                                              link->u.mgd.req_smps);
3046         }
3047         sdata_unlock(sdata);
3048
3049         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3050                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3051
3052         ieee80211_recalc_ps(local);
3053         ieee80211_recalc_ps_vif(sdata);
3054         ieee80211_check_fast_rx_iface(sdata);
3055
3056         return 0;
3057 }
3058
3059 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3060                                          struct net_device *dev,
3061                                          s32 rssi_thold, u32 rssi_hyst)
3062 {
3063         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3064         struct ieee80211_vif *vif = &sdata->vif;
3065         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3066
3067         if (rssi_thold == bss_conf->cqm_rssi_thold &&
3068             rssi_hyst == bss_conf->cqm_rssi_hyst)
3069                 return 0;
3070
3071         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3072             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3073                 return -EOPNOTSUPP;
3074
3075         bss_conf->cqm_rssi_thold = rssi_thold;
3076         bss_conf->cqm_rssi_hyst = rssi_hyst;
3077         bss_conf->cqm_rssi_low = 0;
3078         bss_conf->cqm_rssi_high = 0;
3079         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3080
3081         /* tell the driver upon association, unless already associated */
3082         if (sdata->u.mgd.associated &&
3083             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3084                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3085                                                   BSS_CHANGED_CQM);
3086
3087         return 0;
3088 }
3089
3090 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3091                                                struct net_device *dev,
3092                                                s32 rssi_low, s32 rssi_high)
3093 {
3094         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3095         struct ieee80211_vif *vif = &sdata->vif;
3096         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3097
3098         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3099                 return -EOPNOTSUPP;
3100
3101         bss_conf->cqm_rssi_low = rssi_low;
3102         bss_conf->cqm_rssi_high = rssi_high;
3103         bss_conf->cqm_rssi_thold = 0;
3104         bss_conf->cqm_rssi_hyst = 0;
3105         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3106
3107         /* tell the driver upon association, unless already associated */
3108         if (sdata->u.mgd.associated &&
3109             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3110                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3111                                                   BSS_CHANGED_CQM);
3112
3113         return 0;
3114 }
3115
3116 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3117                                       struct net_device *dev,
3118                                       unsigned int link_id,
3119                                       const u8 *addr,
3120                                       const struct cfg80211_bitrate_mask *mask)
3121 {
3122         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3123         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3124         int i, ret;
3125
3126         if (!ieee80211_sdata_running(sdata))
3127                 return -ENETDOWN;
3128
3129         /*
3130          * If active validate the setting and reject it if it doesn't leave
3131          * at least one basic rate usable, since we really have to be able
3132          * to send something, and if we're an AP we have to be able to do
3133          * so at a basic rate so that all clients can receive it.
3134          */
3135         if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3136             sdata->vif.bss_conf.chandef.chan) {
3137                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3138                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3139
3140                 if (!(mask->control[band].legacy & basic_rates))
3141                         return -EINVAL;
3142         }
3143
3144         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3145                 ret = drv_set_bitrate_mask(local, sdata, mask);
3146                 if (ret)
3147                         return ret;
3148         }
3149
3150         for (i = 0; i < NUM_NL80211_BANDS; i++) {
3151                 struct ieee80211_supported_band *sband = wiphy->bands[i];
3152                 int j;
3153
3154                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3155                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3156                        sizeof(mask->control[i].ht_mcs));
3157                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3158                        mask->control[i].vht_mcs,
3159                        sizeof(mask->control[i].vht_mcs));
3160
3161                 sdata->rc_has_mcs_mask[i] = false;
3162                 sdata->rc_has_vht_mcs_mask[i] = false;
3163                 if (!sband)
3164                         continue;
3165
3166                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3167                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3168                                 sdata->rc_has_mcs_mask[i] = true;
3169                                 break;
3170                         }
3171                 }
3172
3173                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3174                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3175                                 sdata->rc_has_vht_mcs_mask[i] = true;
3176                                 break;
3177                         }
3178                 }
3179         }
3180
3181         return 0;
3182 }
3183
3184 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3185                                            struct net_device *dev,
3186                                            struct cfg80211_chan_def *chandef,
3187                                            u32 cac_time_ms)
3188 {
3189         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3190         struct ieee80211_local *local = sdata->local;
3191         int err;
3192
3193         mutex_lock(&local->mtx);
3194         if (!list_empty(&local->roc_list) || local->scanning) {
3195                 err = -EBUSY;
3196                 goto out_unlock;
3197         }
3198
3199         /* whatever, but channel contexts should not complain about that one */
3200         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3201         sdata->deflink.needed_rx_chains = local->rx_chains;
3202
3203         err = ieee80211_link_use_channel(&sdata->deflink, chandef,
3204                                          IEEE80211_CHANCTX_SHARED);
3205         if (err)
3206                 goto out_unlock;
3207
3208         ieee80211_queue_delayed_work(&sdata->local->hw,
3209                                      &sdata->deflink.dfs_cac_timer_work,
3210                                      msecs_to_jiffies(cac_time_ms));
3211
3212  out_unlock:
3213         mutex_unlock(&local->mtx);
3214         return err;
3215 }
3216
3217 static void ieee80211_end_cac(struct wiphy *wiphy,
3218                               struct net_device *dev)
3219 {
3220         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3221         struct ieee80211_local *local = sdata->local;
3222
3223         mutex_lock(&local->mtx);
3224         list_for_each_entry(sdata, &local->interfaces, list) {
3225                 /* it might be waiting for the local->mtx, but then
3226                  * by the time it gets it, sdata->wdev.cac_started
3227                  * will no longer be true
3228                  */
3229                 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
3230
3231                 if (sdata->wdev.cac_started) {
3232                         ieee80211_link_release_channel(&sdata->deflink);
3233                         sdata->wdev.cac_started = false;
3234                 }
3235         }
3236         mutex_unlock(&local->mtx);
3237 }
3238
3239 static struct cfg80211_beacon_data *
3240 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3241 {
3242         struct cfg80211_beacon_data *new_beacon;
3243         u8 *pos;
3244         int len;
3245
3246         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3247               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3248               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len +
3249               ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies);
3250
3251         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3252         if (!new_beacon)
3253                 return NULL;
3254
3255         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3256                 new_beacon->mbssid_ies =
3257                         kzalloc(struct_size(new_beacon->mbssid_ies,
3258                                             elem, beacon->mbssid_ies->cnt),
3259                                 GFP_KERNEL);
3260                 if (!new_beacon->mbssid_ies) {
3261                         kfree(new_beacon);
3262                         return NULL;
3263                 }
3264         }
3265
3266         pos = (u8 *)(new_beacon + 1);
3267         if (beacon->head_len) {
3268                 new_beacon->head_len = beacon->head_len;
3269                 new_beacon->head = pos;
3270                 memcpy(pos, beacon->head, beacon->head_len);
3271                 pos += beacon->head_len;
3272         }
3273         if (beacon->tail_len) {
3274                 new_beacon->tail_len = beacon->tail_len;
3275                 new_beacon->tail = pos;
3276                 memcpy(pos, beacon->tail, beacon->tail_len);
3277                 pos += beacon->tail_len;
3278         }
3279         if (beacon->beacon_ies_len) {
3280                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3281                 new_beacon->beacon_ies = pos;
3282                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3283                 pos += beacon->beacon_ies_len;
3284         }
3285         if (beacon->proberesp_ies_len) {
3286                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3287                 new_beacon->proberesp_ies = pos;
3288                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3289                 pos += beacon->proberesp_ies_len;
3290         }
3291         if (beacon->assocresp_ies_len) {
3292                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3293                 new_beacon->assocresp_ies = pos;
3294                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3295                 pos += beacon->assocresp_ies_len;
3296         }
3297         if (beacon->probe_resp_len) {
3298                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3299                 new_beacon->probe_resp = pos;
3300                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3301                 pos += beacon->probe_resp_len;
3302         }
3303         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt)
3304                 pos += ieee80211_copy_mbssid_beacon(pos,
3305                                                     new_beacon->mbssid_ies,
3306                                                     beacon->mbssid_ies);
3307
3308         /* might copy -1, meaning no changes requested */
3309         new_beacon->ftm_responder = beacon->ftm_responder;
3310         if (beacon->lci) {
3311                 new_beacon->lci_len = beacon->lci_len;
3312                 new_beacon->lci = pos;
3313                 memcpy(pos, beacon->lci, beacon->lci_len);
3314                 pos += beacon->lci_len;
3315         }
3316         if (beacon->civicloc) {
3317                 new_beacon->civicloc_len = beacon->civicloc_len;
3318                 new_beacon->civicloc = pos;
3319                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3320                 pos += beacon->civicloc_len;
3321         }
3322
3323         return new_beacon;
3324 }
3325
3326 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3327 {
3328         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3329         struct ieee80211_local *local = sdata->local;
3330
3331         rcu_read_lock();
3332
3333         if (vif->mbssid_tx_vif == vif) {
3334                 /* Trigger ieee80211_csa_finish() on the non-transmitting
3335                  * interfaces when channel switch is received on
3336                  * transmitting interface
3337                  */
3338                 struct ieee80211_sub_if_data *iter;
3339
3340                 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3341                         if (!ieee80211_sdata_running(iter))
3342                                 continue;
3343
3344                         if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3345                                 continue;
3346
3347                         ieee80211_queue_work(&iter->local->hw,
3348                                              &iter->deflink.csa_finalize_work);
3349                 }
3350         }
3351         ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work);
3352
3353         rcu_read_unlock();
3354 }
3355 EXPORT_SYMBOL(ieee80211_csa_finish);
3356
3357 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3358 {
3359         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3360         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3361         struct ieee80211_local *local = sdata->local;
3362
3363         sdata->deflink.csa_block_tx = block_tx;
3364         sdata_info(sdata, "channel switch failed, disconnecting\n");
3365         ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work);
3366 }
3367 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3368
3369 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3370                                           u32 *changed)
3371 {
3372         int err;
3373
3374         switch (sdata->vif.type) {
3375         case NL80211_IFTYPE_AP:
3376                 if (!sdata->deflink.u.ap.next_beacon)
3377                         return -EINVAL;
3378
3379                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3380                                               sdata->deflink.u.ap.next_beacon,
3381                                               NULL, NULL);
3382                 ieee80211_free_next_beacon(&sdata->deflink);
3383
3384                 if (err < 0)
3385                         return err;
3386                 *changed |= err;
3387                 break;
3388         case NL80211_IFTYPE_ADHOC:
3389                 err = ieee80211_ibss_finish_csa(sdata);
3390                 if (err < 0)
3391                         return err;
3392                 *changed |= err;
3393                 break;
3394 #ifdef CONFIG_MAC80211_MESH
3395         case NL80211_IFTYPE_MESH_POINT:
3396                 err = ieee80211_mesh_finish_csa(sdata);
3397                 if (err < 0)
3398                         return err;
3399                 *changed |= err;
3400                 break;
3401 #endif
3402         default:
3403                 WARN_ON(1);
3404                 return -EINVAL;
3405         }
3406
3407         return 0;
3408 }
3409
3410 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3411 {
3412         struct ieee80211_local *local = sdata->local;
3413         u32 changed = 0;
3414         int err;
3415
3416         sdata_assert_lock(sdata);
3417         lockdep_assert_held(&local->mtx);
3418         lockdep_assert_held(&local->chanctx_mtx);
3419
3420         /*
3421          * using reservation isn't immediate as it may be deferred until later
3422          * with multi-vif. once reservation is complete it will re-schedule the
3423          * work with no reserved_chanctx so verify chandef to check if it
3424          * completed successfully
3425          */
3426
3427         if (sdata->deflink.reserved_chanctx) {
3428                 /*
3429                  * with multi-vif csa driver may call ieee80211_csa_finish()
3430                  * many times while waiting for other interfaces to use their
3431                  * reservations
3432                  */
3433                 if (sdata->deflink.reserved_ready)
3434                         return 0;
3435
3436                 return ieee80211_link_use_reserved_context(&sdata->deflink);
3437         }
3438
3439         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3440                                         &sdata->deflink.csa_chandef))
3441                 return -EINVAL;
3442
3443         sdata->vif.bss_conf.csa_active = false;
3444
3445         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3446         if (err)
3447                 return err;
3448
3449         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
3450
3451         if (sdata->deflink.csa_block_tx) {
3452                 ieee80211_wake_vif_queues(local, sdata,
3453                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3454                 sdata->deflink.csa_block_tx = false;
3455         }
3456
3457         err = drv_post_channel_switch(sdata);
3458         if (err)
3459                 return err;
3460
3461         cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0);
3462
3463         return 0;
3464 }
3465
3466 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3467 {
3468         if (__ieee80211_csa_finalize(sdata)) {
3469                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3470                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3471                                     GFP_KERNEL);
3472         }
3473 }
3474
3475 void ieee80211_csa_finalize_work(struct work_struct *work)
3476 {
3477         struct ieee80211_sub_if_data *sdata =
3478                 container_of(work, struct ieee80211_sub_if_data,
3479                              deflink.csa_finalize_work);
3480         struct ieee80211_local *local = sdata->local;
3481
3482         sdata_lock(sdata);
3483         mutex_lock(&local->mtx);
3484         mutex_lock(&local->chanctx_mtx);
3485
3486         /* AP might have been stopped while waiting for the lock. */
3487         if (!sdata->vif.bss_conf.csa_active)
3488                 goto unlock;
3489
3490         if (!ieee80211_sdata_running(sdata))
3491                 goto unlock;
3492
3493         ieee80211_csa_finalize(sdata);
3494
3495 unlock:
3496         mutex_unlock(&local->chanctx_mtx);
3497         mutex_unlock(&local->mtx);
3498         sdata_unlock(sdata);
3499 }
3500
3501 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3502                                     struct cfg80211_csa_settings *params,
3503                                     u32 *changed)
3504 {
3505         struct ieee80211_csa_settings csa = {};
3506         int err;
3507
3508         switch (sdata->vif.type) {
3509         case NL80211_IFTYPE_AP:
3510                 sdata->deflink.u.ap.next_beacon =
3511                         cfg80211_beacon_dup(&params->beacon_after);
3512                 if (!sdata->deflink.u.ap.next_beacon)
3513                         return -ENOMEM;
3514
3515                 /*
3516                  * With a count of 0, we don't have to wait for any
3517                  * TBTT before switching, so complete the CSA
3518                  * immediately.  In theory, with a count == 1 we
3519                  * should delay the switch until just before the next
3520                  * TBTT, but that would complicate things so we switch
3521                  * immediately too.  If we would delay the switch
3522                  * until the next TBTT, we would have to set the probe
3523                  * response here.
3524                  *
3525                  * TODO: A channel switch with count <= 1 without
3526                  * sending a CSA action frame is kind of useless,
3527                  * because the clients won't know we're changing
3528                  * channels.  The action frame must be implemented
3529                  * either here or in the userspace.
3530                  */
3531                 if (params->count <= 1)
3532                         break;
3533
3534                 if ((params->n_counter_offsets_beacon >
3535                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3536                     (params->n_counter_offsets_presp >
3537                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3538                         ieee80211_free_next_beacon(&sdata->deflink);
3539                         return -EINVAL;
3540                 }
3541
3542                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3543                 csa.counter_offsets_presp = params->counter_offsets_presp;
3544                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3545                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3546                 csa.count = params->count;
3547
3548                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3549                                               &params->beacon_csa, &csa,
3550                                               NULL);
3551                 if (err < 0) {
3552                         ieee80211_free_next_beacon(&sdata->deflink);
3553                         return err;
3554                 }
3555                 *changed |= err;
3556
3557                 break;
3558         case NL80211_IFTYPE_ADHOC:
3559                 if (!sdata->vif.cfg.ibss_joined)
3560                         return -EINVAL;
3561
3562                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3563                         return -EINVAL;
3564
3565                 switch (params->chandef.width) {
3566                 case NL80211_CHAN_WIDTH_40:
3567                         if (cfg80211_get_chandef_type(&params->chandef) !=
3568                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3569                                 return -EINVAL;
3570                         break;
3571                 case NL80211_CHAN_WIDTH_5:
3572                 case NL80211_CHAN_WIDTH_10:
3573                 case NL80211_CHAN_WIDTH_20_NOHT:
3574                 case NL80211_CHAN_WIDTH_20:
3575                         break;
3576                 default:
3577                         return -EINVAL;
3578                 }
3579
3580                 /* changes into another band are not supported */
3581                 if (sdata->u.ibss.chandef.chan->band !=
3582                     params->chandef.chan->band)
3583                         return -EINVAL;
3584
3585                 /* see comments in the NL80211_IFTYPE_AP block */
3586                 if (params->count > 1) {
3587                         err = ieee80211_ibss_csa_beacon(sdata, params);
3588                         if (err < 0)
3589                                 return err;
3590                         *changed |= err;
3591                 }
3592
3593                 ieee80211_send_action_csa(sdata, params);
3594
3595                 break;
3596 #ifdef CONFIG_MAC80211_MESH
3597         case NL80211_IFTYPE_MESH_POINT: {
3598                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3599
3600                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3601                         return -EINVAL;
3602
3603                 /* changes into another band are not supported */
3604                 if (sdata->vif.bss_conf.chandef.chan->band !=
3605                     params->chandef.chan->band)
3606                         return -EINVAL;
3607
3608                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3609                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3610                         if (!ifmsh->pre_value)
3611                                 ifmsh->pre_value = 1;
3612                         else
3613                                 ifmsh->pre_value++;
3614                 }
3615
3616                 /* see comments in the NL80211_IFTYPE_AP block */
3617                 if (params->count > 1) {
3618                         err = ieee80211_mesh_csa_beacon(sdata, params);
3619                         if (err < 0) {
3620                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3621                                 return err;
3622                         }
3623                         *changed |= err;
3624                 }
3625
3626                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3627                         ieee80211_send_action_csa(sdata, params);
3628
3629                 break;
3630                 }
3631 #endif
3632         default:
3633                 return -EOPNOTSUPP;
3634         }
3635
3636         return 0;
3637 }
3638
3639 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data  *sdata)
3640 {
3641         sdata->vif.bss_conf.color_change_active = false;
3642
3643         ieee80211_free_next_beacon(&sdata->deflink);
3644
3645         cfg80211_color_change_aborted_notify(sdata->dev);
3646 }
3647
3648 static int
3649 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3650                            struct cfg80211_csa_settings *params)
3651 {
3652         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3653         struct ieee80211_local *local = sdata->local;
3654         struct ieee80211_channel_switch ch_switch;
3655         struct ieee80211_chanctx_conf *conf;
3656         struct ieee80211_chanctx *chanctx;
3657         u32 changed = 0;
3658         int err;
3659
3660         sdata_assert_lock(sdata);
3661         lockdep_assert_held(&local->mtx);
3662
3663         if (!list_empty(&local->roc_list) || local->scanning)
3664                 return -EBUSY;
3665
3666         if (sdata->wdev.cac_started)
3667                 return -EBUSY;
3668
3669         if (cfg80211_chandef_identical(&params->chandef,
3670                                        &sdata->vif.bss_conf.chandef))
3671                 return -EINVAL;
3672
3673         /* don't allow another channel switch if one is already active. */
3674         if (sdata->vif.bss_conf.csa_active)
3675                 return -EBUSY;
3676
3677         mutex_lock(&local->chanctx_mtx);
3678         conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3679                                          lockdep_is_held(&local->chanctx_mtx));
3680         if (!conf) {
3681                 err = -EBUSY;
3682                 goto out;
3683         }
3684
3685         if (params->chandef.chan->freq_offset) {
3686                 /* this may work, but is untested */
3687                 err = -EOPNOTSUPP;
3688                 goto out;
3689         }
3690
3691         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3692
3693         ch_switch.timestamp = 0;
3694         ch_switch.device_timestamp = 0;
3695         ch_switch.block_tx = params->block_tx;
3696         ch_switch.chandef = params->chandef;
3697         ch_switch.count = params->count;
3698
3699         err = drv_pre_channel_switch(sdata, &ch_switch);
3700         if (err)
3701                 goto out;
3702
3703         err = ieee80211_link_reserve_chanctx(&sdata->deflink, &params->chandef,
3704                                              chanctx->mode,
3705                                              params->radar_required);
3706         if (err)
3707                 goto out;
3708
3709         /* if reservation is invalid then this will fail */
3710         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3711         if (err) {
3712                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3713                 goto out;
3714         }
3715
3716         /* if there is a color change in progress, abort it */
3717         if (sdata->vif.bss_conf.color_change_active)
3718                 ieee80211_color_change_abort(sdata);
3719
3720         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3721         if (err) {
3722                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3723                 goto out;
3724         }
3725
3726         sdata->deflink.csa_chandef = params->chandef;
3727         sdata->deflink.csa_block_tx = params->block_tx;
3728         sdata->vif.bss_conf.csa_active = true;
3729
3730         if (sdata->deflink.csa_block_tx)
3731                 ieee80211_stop_vif_queues(local, sdata,
3732                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3733
3734         cfg80211_ch_switch_started_notify(sdata->dev,
3735                                           &sdata->deflink.csa_chandef,
3736                                           params->count, params->block_tx);
3737
3738         if (changed) {
3739                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3740                                                   changed);
3741                 drv_channel_switch_beacon(sdata, &params->chandef);
3742         } else {
3743                 /* if the beacon didn't change, we can finalize immediately */
3744                 ieee80211_csa_finalize(sdata);
3745         }
3746
3747 out:
3748         mutex_unlock(&local->chanctx_mtx);
3749         return err;
3750 }
3751
3752 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3753                              struct cfg80211_csa_settings *params)
3754 {
3755         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3756         struct ieee80211_local *local = sdata->local;
3757         int err;
3758
3759         mutex_lock(&local->mtx);
3760         err = __ieee80211_channel_switch(wiphy, dev, params);
3761         mutex_unlock(&local->mtx);
3762
3763         return err;
3764 }
3765
3766 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3767 {
3768         lockdep_assert_held(&local->mtx);
3769
3770         local->roc_cookie_counter++;
3771
3772         /* wow, you wrapped 64 bits ... more likely a bug */
3773         if (WARN_ON(local->roc_cookie_counter == 0))
3774                 local->roc_cookie_counter++;
3775
3776         return local->roc_cookie_counter;
3777 }
3778
3779 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3780                              u64 *cookie, gfp_t gfp)
3781 {
3782         unsigned long spin_flags;
3783         struct sk_buff *ack_skb;
3784         int id;
3785
3786         ack_skb = skb_copy(skb, gfp);
3787         if (!ack_skb)
3788                 return -ENOMEM;
3789
3790         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3791         id = idr_alloc(&local->ack_status_frames, ack_skb,
3792                        1, 0x2000, GFP_ATOMIC);
3793         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3794
3795         if (id < 0) {
3796                 kfree_skb(ack_skb);
3797                 return -ENOMEM;
3798         }
3799
3800         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3801
3802         *cookie = ieee80211_mgmt_tx_cookie(local);
3803         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3804
3805         return 0;
3806 }
3807
3808 static void
3809 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3810                                           struct wireless_dev *wdev,
3811                                           struct mgmt_frame_regs *upd)
3812 {
3813         struct ieee80211_local *local = wiphy_priv(wiphy);
3814         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3815         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3816         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3817         bool global_change, intf_change;
3818
3819         global_change =
3820                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3821                 (local->rx_mcast_action_reg !=
3822                  !!(upd->global_mcast_stypes & action_mask));
3823         local->probe_req_reg = upd->global_stypes & preq_mask;
3824         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3825
3826         intf_change = (sdata->vif.probe_req_reg !=
3827                        !!(upd->interface_stypes & preq_mask)) ||
3828                 (sdata->vif.rx_mcast_action_reg !=
3829                  !!(upd->interface_mcast_stypes & action_mask));
3830         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3831         sdata->vif.rx_mcast_action_reg =
3832                 upd->interface_mcast_stypes & action_mask;
3833
3834         if (!local->open_count)
3835                 return;
3836
3837         if (intf_change && ieee80211_sdata_running(sdata))
3838                 drv_config_iface_filter(local, sdata,
3839                                         sdata->vif.probe_req_reg ?
3840                                                 FIF_PROBE_REQ : 0,
3841                                         FIF_PROBE_REQ);
3842
3843         if (global_change)
3844                 ieee80211_configure_filter(local);
3845 }
3846
3847 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3848 {
3849         struct ieee80211_local *local = wiphy_priv(wiphy);
3850
3851         if (local->started)
3852                 return -EOPNOTSUPP;
3853
3854         return drv_set_antenna(local, tx_ant, rx_ant);
3855 }
3856
3857 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3858 {
3859         struct ieee80211_local *local = wiphy_priv(wiphy);
3860
3861         return drv_get_antenna(local, tx_ant, rx_ant);
3862 }
3863
3864 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3865                                     struct net_device *dev,
3866                                     struct cfg80211_gtk_rekey_data *data)
3867 {
3868         struct ieee80211_local *local = wiphy_priv(wiphy);
3869         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3870
3871         if (!local->ops->set_rekey_data)
3872                 return -EOPNOTSUPP;
3873
3874         drv_set_rekey_data(local, sdata, data);
3875
3876         return 0;
3877 }
3878
3879 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3880                                   const u8 *peer, u64 *cookie)
3881 {
3882         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3883         struct ieee80211_local *local = sdata->local;
3884         struct ieee80211_qos_hdr *nullfunc;
3885         struct sk_buff *skb;
3886         int size = sizeof(*nullfunc);
3887         __le16 fc;
3888         bool qos;
3889         struct ieee80211_tx_info *info;
3890         struct sta_info *sta;
3891         struct ieee80211_chanctx_conf *chanctx_conf;
3892         enum nl80211_band band;
3893         int ret;
3894
3895         /* the lock is needed to assign the cookie later */
3896         mutex_lock(&local->mtx);
3897
3898         rcu_read_lock();
3899         chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
3900         if (WARN_ON(!chanctx_conf)) {
3901                 ret = -EINVAL;
3902                 goto unlock;
3903         }
3904         band = chanctx_conf->def.chan->band;
3905         sta = sta_info_get_bss(sdata, peer);
3906         if (sta) {
3907                 qos = sta->sta.wme;
3908         } else {
3909                 ret = -ENOLINK;
3910                 goto unlock;
3911         }
3912
3913         if (qos) {
3914                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3915                                  IEEE80211_STYPE_QOS_NULLFUNC |
3916                                  IEEE80211_FCTL_FROMDS);
3917         } else {
3918                 size -= 2;
3919                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3920                                  IEEE80211_STYPE_NULLFUNC |
3921                                  IEEE80211_FCTL_FROMDS);
3922         }
3923
3924         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3925         if (!skb) {
3926                 ret = -ENOMEM;
3927                 goto unlock;
3928         }
3929
3930         skb->dev = dev;
3931
3932         skb_reserve(skb, local->hw.extra_tx_headroom);
3933
3934         nullfunc = skb_put(skb, size);
3935         nullfunc->frame_control = fc;
3936         nullfunc->duration_id = 0;
3937         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3938         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3939         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3940         nullfunc->seq_ctrl = 0;
3941
3942         info = IEEE80211_SKB_CB(skb);
3943
3944         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3945                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3946         info->band = band;
3947
3948         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3949         skb->priority = 7;
3950         if (qos)
3951                 nullfunc->qos_ctrl = cpu_to_le16(7);
3952
3953         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3954         if (ret) {
3955                 kfree_skb(skb);
3956                 goto unlock;
3957         }
3958
3959         local_bh_disable();
3960         ieee80211_xmit(sdata, sta, skb);
3961         local_bh_enable();
3962
3963         ret = 0;
3964 unlock:
3965         rcu_read_unlock();
3966         mutex_unlock(&local->mtx);
3967
3968         return ret;
3969 }
3970
3971 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3972                                      struct wireless_dev *wdev,
3973                                      unsigned int link_id,
3974                                      struct cfg80211_chan_def *chandef)
3975 {
3976         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3977         struct ieee80211_local *local = wiphy_priv(wiphy);
3978         struct ieee80211_chanctx_conf *chanctx_conf;
3979         struct ieee80211_link_data *link;
3980         int ret = -ENODATA;
3981
3982         rcu_read_lock();
3983         link = rcu_dereference(sdata->link[link_id]);
3984         if (!link) {
3985                 ret = -ENOLINK;
3986                 goto out;
3987         }
3988
3989         chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
3990         if (chanctx_conf) {
3991                 *chandef = link->conf->chandef;
3992                 ret = 0;
3993         } else if (local->open_count > 0 &&
3994                    local->open_count == local->monitors &&
3995                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3996                 if (local->use_chanctx)
3997                         *chandef = local->monitor_chandef;
3998                 else
3999                         *chandef = local->_oper_chandef;
4000                 ret = 0;
4001         }
4002 out:
4003         rcu_read_unlock();
4004
4005         return ret;
4006 }
4007
4008 #ifdef CONFIG_PM
4009 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4010 {
4011         drv_set_wakeup(wiphy_priv(wiphy), enabled);
4012 }
4013 #endif
4014
4015 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4016                                  struct net_device *dev,
4017                                  struct cfg80211_qos_map *qos_map)
4018 {
4019         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4020         struct mac80211_qos_map *new_qos_map, *old_qos_map;
4021
4022         if (qos_map) {
4023                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4024                 if (!new_qos_map)
4025                         return -ENOMEM;
4026                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4027         } else {
4028                 /* A NULL qos_map was passed to disable QoS mapping */
4029                 new_qos_map = NULL;
4030         }
4031
4032         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4033         rcu_assign_pointer(sdata->qos_map, new_qos_map);
4034         if (old_qos_map)
4035                 kfree_rcu(old_qos_map, rcu_head);
4036
4037         return 0;
4038 }
4039
4040 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4041                                       struct net_device *dev,
4042                                       unsigned int link_id,
4043                                       struct cfg80211_chan_def *chandef)
4044 {
4045         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4046         struct ieee80211_link_data *link;
4047         int ret;
4048         u32 changed = 0;
4049
4050         link = sdata_dereference(sdata->link[link_id], sdata);
4051
4052         ret = ieee80211_link_change_bandwidth(link, chandef, &changed);
4053         if (ret == 0)
4054                 ieee80211_link_info_change_notify(sdata, link, changed);
4055
4056         return ret;
4057 }
4058
4059 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4060                                u8 tsid, const u8 *peer, u8 up,
4061                                u16 admitted_time)
4062 {
4063         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4064         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4065         int ac = ieee802_1d_to_ac[up];
4066
4067         if (sdata->vif.type != NL80211_IFTYPE_STATION)
4068                 return -EOPNOTSUPP;
4069
4070         if (!(sdata->wmm_acm & BIT(up)))
4071                 return -EINVAL;
4072
4073         if (ifmgd->tx_tspec[ac].admitted_time)
4074                 return -EBUSY;
4075
4076         if (admitted_time) {
4077                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4078                 ifmgd->tx_tspec[ac].tsid = tsid;
4079                 ifmgd->tx_tspec[ac].up = up;
4080         }
4081
4082         return 0;
4083 }
4084
4085 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4086                                u8 tsid, const u8 *peer)
4087 {
4088         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4089         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4090         struct ieee80211_local *local = wiphy_priv(wiphy);
4091         int ac;
4092
4093         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4094                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4095
4096                 /* skip unused entries */
4097                 if (!tx_tspec->admitted_time)
4098                         continue;
4099
4100                 if (tx_tspec->tsid != tsid)
4101                         continue;
4102
4103                 /* due to this new packets will be reassigned to non-ACM ACs */
4104                 tx_tspec->up = -1;
4105
4106                 /* Make sure that all packets have been sent to avoid to
4107                  * restore the QoS params on packets that are still on the
4108                  * queues.
4109                  */
4110                 synchronize_net();
4111                 ieee80211_flush_queues(local, sdata, false);
4112
4113                 /* restore the normal QoS parameters
4114                  * (unconditionally to avoid races)
4115                  */
4116                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4117                 tx_tspec->downgraded = false;
4118                 ieee80211_sta_handle_tspec_ac_params(sdata);
4119
4120                 /* finally clear all the data */
4121                 memset(tx_tspec, 0, sizeof(*tx_tspec));
4122
4123                 return 0;
4124         }
4125
4126         return -ENOENT;
4127 }
4128
4129 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4130                                    u8 inst_id,
4131                                    enum nl80211_nan_func_term_reason reason,
4132                                    gfp_t gfp)
4133 {
4134         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4135         struct cfg80211_nan_func *func;
4136         u64 cookie;
4137
4138         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4139                 return;
4140
4141         spin_lock_bh(&sdata->u.nan.func_lock);
4142
4143         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4144         if (WARN_ON(!func)) {
4145                 spin_unlock_bh(&sdata->u.nan.func_lock);
4146                 return;
4147         }
4148
4149         cookie = func->cookie;
4150         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4151
4152         spin_unlock_bh(&sdata->u.nan.func_lock);
4153
4154         cfg80211_free_nan_func(func);
4155
4156         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4157                                      reason, cookie, gfp);
4158 }
4159 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4160
4161 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4162                               struct cfg80211_nan_match_params *match,
4163                               gfp_t gfp)
4164 {
4165         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4166         struct cfg80211_nan_func *func;
4167
4168         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4169                 return;
4170
4171         spin_lock_bh(&sdata->u.nan.func_lock);
4172
4173         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
4174         if (WARN_ON(!func)) {
4175                 spin_unlock_bh(&sdata->u.nan.func_lock);
4176                 return;
4177         }
4178         match->cookie = func->cookie;
4179
4180         spin_unlock_bh(&sdata->u.nan.func_lock);
4181
4182         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4183 }
4184 EXPORT_SYMBOL(ieee80211_nan_func_match);
4185
4186 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4187                                               struct net_device *dev,
4188                                               const bool enabled)
4189 {
4190         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4191
4192         sdata->u.ap.multicast_to_unicast = enabled;
4193
4194         return 0;
4195 }
4196
4197 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4198                               struct txq_info *txqi)
4199 {
4200         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4201                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4202                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4203         }
4204
4205         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4206                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4207                 txqstats->backlog_packets = txqi->tin.backlog_packets;
4208         }
4209
4210         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4211                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4212                 txqstats->flows = txqi->tin.flows;
4213         }
4214
4215         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4216                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4217                 txqstats->drops = txqi->cstats.drop_count;
4218         }
4219
4220         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4221                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4222                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4223         }
4224
4225         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4226                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4227                 txqstats->overlimit = txqi->tin.overlimit;
4228         }
4229
4230         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4231                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4232                 txqstats->collisions = txqi->tin.collisions;
4233         }
4234
4235         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4236                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4237                 txqstats->tx_bytes = txqi->tin.tx_bytes;
4238         }
4239
4240         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4241                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4242                 txqstats->tx_packets = txqi->tin.tx_packets;
4243         }
4244 }
4245
4246 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4247                                    struct wireless_dev *wdev,
4248                                    struct cfg80211_txq_stats *txqstats)
4249 {
4250         struct ieee80211_local *local = wiphy_priv(wiphy);
4251         struct ieee80211_sub_if_data *sdata;
4252         int ret = 0;
4253
4254         if (!local->ops->wake_tx_queue)
4255                 return 1;
4256
4257         spin_lock_bh(&local->fq.lock);
4258         rcu_read_lock();
4259
4260         if (wdev) {
4261                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4262                 if (!sdata->vif.txq) {
4263                         ret = 1;
4264                         goto out;
4265                 }
4266                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4267         } else {
4268                 /* phy stats */
4269                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4270                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4271                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4272                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4273                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
4274                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4275                 txqstats->backlog_packets = local->fq.backlog;
4276                 txqstats->backlog_bytes = local->fq.memory_usage;
4277                 txqstats->overlimit = local->fq.overlimit;
4278                 txqstats->overmemory = local->fq.overmemory;
4279                 txqstats->collisions = local->fq.collisions;
4280                 txqstats->max_flows = local->fq.flows_cnt;
4281         }
4282
4283 out:
4284         rcu_read_unlock();
4285         spin_unlock_bh(&local->fq.lock);
4286
4287         return ret;
4288 }
4289
4290 static int
4291 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4292                                   struct net_device *dev,
4293                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4294 {
4295         struct ieee80211_local *local = wiphy_priv(wiphy);
4296         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4297
4298         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4299 }
4300
4301 static int
4302 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4303                      struct cfg80211_pmsr_request *request)
4304 {
4305         struct ieee80211_local *local = wiphy_priv(wiphy);
4306         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4307
4308         return drv_start_pmsr(local, sdata, request);
4309 }
4310
4311 static void
4312 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4313                      struct cfg80211_pmsr_request *request)
4314 {
4315         struct ieee80211_local *local = wiphy_priv(wiphy);
4316         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4317
4318         return drv_abort_pmsr(local, sdata, request);
4319 }
4320
4321 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4322                                     struct net_device *dev,
4323                                     struct cfg80211_tid_config *tid_conf)
4324 {
4325         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4326         struct sta_info *sta;
4327         int ret;
4328
4329         if (!sdata->local->ops->set_tid_config)
4330                 return -EOPNOTSUPP;
4331
4332         if (!tid_conf->peer)
4333                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4334
4335         mutex_lock(&sdata->local->sta_mtx);
4336         sta = sta_info_get_bss(sdata, tid_conf->peer);
4337         if (!sta) {
4338                 mutex_unlock(&sdata->local->sta_mtx);
4339                 return -ENOENT;
4340         }
4341
4342         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4343         mutex_unlock(&sdata->local->sta_mtx);
4344
4345         return ret;
4346 }
4347
4348 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4349                                       struct net_device *dev,
4350                                       const u8 *peer, u8 tids)
4351 {
4352         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4353         struct sta_info *sta;
4354         int ret;
4355
4356         if (!sdata->local->ops->reset_tid_config)
4357                 return -EOPNOTSUPP;
4358
4359         if (!peer)
4360                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4361
4362         mutex_lock(&sdata->local->sta_mtx);
4363         sta = sta_info_get_bss(sdata, peer);
4364         if (!sta) {
4365                 mutex_unlock(&sdata->local->sta_mtx);
4366                 return -ENOENT;
4367         }
4368
4369         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4370         mutex_unlock(&sdata->local->sta_mtx);
4371
4372         return ret;
4373 }
4374
4375 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4376                                    struct cfg80211_sar_specs *sar)
4377 {
4378         struct ieee80211_local *local = wiphy_priv(wiphy);
4379
4380         if (!local->ops->set_sar_specs)
4381                 return -EOPNOTSUPP;
4382
4383         return local->ops->set_sar_specs(&local->hw, sar);
4384 }
4385
4386 static int
4387 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4388                                         u32 *changed)
4389 {
4390         switch (sdata->vif.type) {
4391         case NL80211_IFTYPE_AP: {
4392                 int ret;
4393
4394                 if (!sdata->deflink.u.ap.next_beacon)
4395                         return -EINVAL;
4396
4397                 ret = ieee80211_assign_beacon(sdata, &sdata->deflink,
4398                                               sdata->deflink.u.ap.next_beacon,
4399                                               NULL, NULL);
4400                 ieee80211_free_next_beacon(&sdata->deflink);
4401
4402                 if (ret < 0)
4403                         return ret;
4404
4405                 *changed |= ret;
4406                 break;
4407         }
4408         default:
4409                 WARN_ON_ONCE(1);
4410                 return -EINVAL;
4411         }
4412
4413         return 0;
4414 }
4415
4416 static int
4417 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4418                                   struct cfg80211_color_change_settings *params,
4419                                   u32 *changed)
4420 {
4421         struct ieee80211_color_change_settings color_change = {};
4422         int err;
4423
4424         switch (sdata->vif.type) {
4425         case NL80211_IFTYPE_AP:
4426                 sdata->deflink.u.ap.next_beacon =
4427                         cfg80211_beacon_dup(&params->beacon_next);
4428                 if (!sdata->deflink.u.ap.next_beacon)
4429                         return -ENOMEM;
4430
4431                 if (params->count <= 1)
4432                         break;
4433
4434                 color_change.counter_offset_beacon =
4435                         params->counter_offset_beacon;
4436                 color_change.counter_offset_presp =
4437                         params->counter_offset_presp;
4438                 color_change.count = params->count;
4439
4440                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
4441                                               &params->beacon_color_change,
4442                                               NULL, &color_change);
4443                 if (err < 0) {
4444                         ieee80211_free_next_beacon(&sdata->deflink);
4445                         return err;
4446                 }
4447                 *changed |= err;
4448                 break;
4449         default:
4450                 return -EOPNOTSUPP;
4451         }
4452
4453         return 0;
4454 }
4455
4456 static void
4457 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4458                                          u8 color, int enable, u32 changed)
4459 {
4460         sdata->vif.bss_conf.he_bss_color.color = color;
4461         sdata->vif.bss_conf.he_bss_color.enabled = enable;
4462         changed |= BSS_CHANGED_HE_BSS_COLOR;
4463
4464         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
4465
4466         if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4467                 struct ieee80211_sub_if_data *child;
4468
4469                 mutex_lock(&sdata->local->iflist_mtx);
4470                 list_for_each_entry(child, &sdata->local->interfaces, list) {
4471                         if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4472                                 child->vif.bss_conf.he_bss_color.color = color;
4473                                 child->vif.bss_conf.he_bss_color.enabled = enable;
4474                                 ieee80211_link_info_change_notify(child,
4475                                                                   &child->deflink,
4476                                                                   BSS_CHANGED_HE_BSS_COLOR);
4477                         }
4478                 }
4479                 mutex_unlock(&sdata->local->iflist_mtx);
4480         }
4481 }
4482
4483 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4484 {
4485         struct ieee80211_local *local = sdata->local;
4486         u32 changed = 0;
4487         int err;
4488
4489         sdata_assert_lock(sdata);
4490         lockdep_assert_held(&local->mtx);
4491
4492         sdata->vif.bss_conf.color_change_active = false;
4493
4494         err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4495         if (err) {
4496                 cfg80211_color_change_aborted_notify(sdata->dev);
4497                 return err;
4498         }
4499
4500         ieee80211_color_change_bss_config_notify(sdata,
4501                                                  sdata->vif.bss_conf.color_change_color,
4502                                                  1, changed);
4503         cfg80211_color_change_notify(sdata->dev);
4504
4505         return 0;
4506 }
4507
4508 void ieee80211_color_change_finalize_work(struct work_struct *work)
4509 {
4510         struct ieee80211_sub_if_data *sdata =
4511                 container_of(work, struct ieee80211_sub_if_data,
4512                              deflink.color_change_finalize_work);
4513         struct ieee80211_local *local = sdata->local;
4514
4515         sdata_lock(sdata);
4516         mutex_lock(&local->mtx);
4517
4518         /* AP might have been stopped while waiting for the lock. */
4519         if (!sdata->vif.bss_conf.color_change_active)
4520                 goto unlock;
4521
4522         if (!ieee80211_sdata_running(sdata))
4523                 goto unlock;
4524
4525         ieee80211_color_change_finalize(sdata);
4526
4527 unlock:
4528         mutex_unlock(&local->mtx);
4529         sdata_unlock(sdata);
4530 }
4531
4532 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4533 {
4534         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4535
4536         ieee80211_queue_work(&sdata->local->hw,
4537                              &sdata->deflink.color_change_finalize_work);
4538 }
4539 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4540
4541 void
4542 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4543                                        u64 color_bitmap, gfp_t gfp)
4544 {
4545         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4546
4547         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4548                 return;
4549
4550         cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap, gfp);
4551 }
4552 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
4553
4554 static int
4555 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4556                        struct cfg80211_color_change_settings *params)
4557 {
4558         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4559         struct ieee80211_local *local = sdata->local;
4560         u32 changed = 0;
4561         int err;
4562
4563         sdata_assert_lock(sdata);
4564
4565         if (sdata->vif.bss_conf.nontransmitted)
4566                 return -EINVAL;
4567
4568         mutex_lock(&local->mtx);
4569
4570         /* don't allow another color change if one is already active or if csa
4571          * is active
4572          */
4573         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4574                 err = -EBUSY;
4575                 goto out;
4576         }
4577
4578         err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4579         if (err)
4580                 goto out;
4581
4582         sdata->vif.bss_conf.color_change_active = true;
4583         sdata->vif.bss_conf.color_change_color = params->color;
4584
4585         cfg80211_color_change_started_notify(sdata->dev, params->count);
4586
4587         if (changed)
4588                 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4589         else
4590                 /* if the beacon didn't change, we can finalize immediately */
4591                 ieee80211_color_change_finalize(sdata);
4592
4593 out:
4594         mutex_unlock(&local->mtx);
4595
4596         return err;
4597 }
4598
4599 static int
4600 ieee80211_set_radar_background(struct wiphy *wiphy,
4601                                struct cfg80211_chan_def *chandef)
4602 {
4603         struct ieee80211_local *local = wiphy_priv(wiphy);
4604
4605         if (!local->ops->set_radar_background)
4606                 return -EOPNOTSUPP;
4607
4608         return local->ops->set_radar_background(&local->hw, chandef);
4609 }
4610
4611 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4612                                    struct wireless_dev *wdev,
4613                                    unsigned int link_id)
4614 {
4615         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4616
4617         return ieee80211_vif_set_links(sdata, wdev->valid_links);
4618 }
4619
4620 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4621                                     struct wireless_dev *wdev,
4622                                     unsigned int link_id)
4623 {
4624         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4625
4626         ieee80211_vif_set_links(sdata, wdev->valid_links);
4627 }
4628
4629 static int sta_add_link_station(struct ieee80211_local *local,
4630                                 struct ieee80211_sub_if_data *sdata,
4631                                 struct link_station_parameters *params)
4632 {
4633         struct sta_info *sta;
4634         int ret;
4635
4636         sta = sta_info_get_bss(sdata, params->mld_mac);
4637         if (!sta)
4638                 return -ENOENT;
4639
4640         if (!sta->sta.valid_links)
4641                 return -EINVAL;
4642
4643         if (sta->sta.valid_links & BIT(params->link_id))
4644                 return -EALREADY;
4645
4646         ret = ieee80211_sta_allocate_link(sta, params->link_id);
4647         if (ret)
4648                 return ret;
4649
4650         ret = sta_link_apply_parameters(local, sta, true, params);
4651         if (ret) {
4652                 ieee80211_sta_free_link(sta, params->link_id);
4653                 return ret;
4654         }
4655
4656         /* ieee80211_sta_activate_link frees the link upon failure */
4657         return ieee80211_sta_activate_link(sta, params->link_id);
4658 }
4659
4660 static int
4661 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4662                            struct link_station_parameters *params)
4663 {
4664         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4665         struct ieee80211_local *local = wiphy_priv(wiphy);
4666         int ret;
4667
4668         mutex_lock(&sdata->local->sta_mtx);
4669         ret = sta_add_link_station(local, sdata, params);
4670         mutex_unlock(&sdata->local->sta_mtx);
4671
4672         return ret;
4673 }
4674
4675 static int sta_mod_link_station(struct ieee80211_local *local,
4676                                 struct ieee80211_sub_if_data *sdata,
4677                                 struct link_station_parameters *params)
4678 {
4679         struct sta_info *sta;
4680
4681         sta = sta_info_get_bss(sdata, params->mld_mac);
4682         if (!sta)
4683                 return -ENOENT;
4684
4685         if (!(sta->sta.valid_links & BIT(params->link_id)))
4686                 return -EINVAL;
4687
4688         return sta_link_apply_parameters(local, sta, false, params);
4689 }
4690
4691 static int
4692 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4693                            struct link_station_parameters *params)
4694 {
4695         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4696         struct ieee80211_local *local = wiphy_priv(wiphy);
4697         int ret;
4698
4699         mutex_lock(&sdata->local->sta_mtx);
4700         ret = sta_mod_link_station(local, sdata, params);
4701         mutex_unlock(&sdata->local->sta_mtx);
4702
4703         return ret;
4704 }
4705
4706 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4707                                 struct link_station_del_parameters *params)
4708 {
4709         struct sta_info *sta;
4710
4711         sta = sta_info_get_bss(sdata, params->mld_mac);
4712         if (!sta)
4713                 return -ENOENT;
4714
4715         if (!(sta->sta.valid_links & BIT(params->link_id)))
4716                 return -EINVAL;
4717
4718         /* must not create a STA without links */
4719         if (sta->sta.valid_links == BIT(params->link_id))
4720                 return -EINVAL;
4721
4722         ieee80211_sta_remove_link(sta, params->link_id);
4723
4724         return 0;
4725 }
4726
4727 static int
4728 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
4729                            struct link_station_del_parameters *params)
4730 {
4731         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4732         int ret;
4733
4734         mutex_lock(&sdata->local->sta_mtx);
4735         ret = sta_del_link_station(sdata, params);
4736         mutex_unlock(&sdata->local->sta_mtx);
4737
4738         return ret;
4739 }
4740
4741 const struct cfg80211_ops mac80211_config_ops = {
4742         .add_virtual_intf = ieee80211_add_iface,
4743         .del_virtual_intf = ieee80211_del_iface,
4744         .change_virtual_intf = ieee80211_change_iface,
4745         .start_p2p_device = ieee80211_start_p2p_device,
4746         .stop_p2p_device = ieee80211_stop_p2p_device,
4747         .add_key = ieee80211_add_key,
4748         .del_key = ieee80211_del_key,
4749         .get_key = ieee80211_get_key,
4750         .set_default_key = ieee80211_config_default_key,
4751         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4752         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4753         .start_ap = ieee80211_start_ap,
4754         .change_beacon = ieee80211_change_beacon,
4755         .stop_ap = ieee80211_stop_ap,
4756         .add_station = ieee80211_add_station,
4757         .del_station = ieee80211_del_station,
4758         .change_station = ieee80211_change_station,
4759         .get_station = ieee80211_get_station,
4760         .dump_station = ieee80211_dump_station,
4761         .dump_survey = ieee80211_dump_survey,
4762 #ifdef CONFIG_MAC80211_MESH
4763         .add_mpath = ieee80211_add_mpath,
4764         .del_mpath = ieee80211_del_mpath,
4765         .change_mpath = ieee80211_change_mpath,
4766         .get_mpath = ieee80211_get_mpath,
4767         .dump_mpath = ieee80211_dump_mpath,
4768         .get_mpp = ieee80211_get_mpp,
4769         .dump_mpp = ieee80211_dump_mpp,
4770         .update_mesh_config = ieee80211_update_mesh_config,
4771         .get_mesh_config = ieee80211_get_mesh_config,
4772         .join_mesh = ieee80211_join_mesh,
4773         .leave_mesh = ieee80211_leave_mesh,
4774 #endif
4775         .join_ocb = ieee80211_join_ocb,
4776         .leave_ocb = ieee80211_leave_ocb,
4777         .change_bss = ieee80211_change_bss,
4778         .set_txq_params = ieee80211_set_txq_params,
4779         .set_monitor_channel = ieee80211_set_monitor_channel,
4780         .suspend = ieee80211_suspend,
4781         .resume = ieee80211_resume,
4782         .scan = ieee80211_scan,
4783         .abort_scan = ieee80211_abort_scan,
4784         .sched_scan_start = ieee80211_sched_scan_start,
4785         .sched_scan_stop = ieee80211_sched_scan_stop,
4786         .auth = ieee80211_auth,
4787         .assoc = ieee80211_assoc,
4788         .deauth = ieee80211_deauth,
4789         .disassoc = ieee80211_disassoc,
4790         .join_ibss = ieee80211_join_ibss,
4791         .leave_ibss = ieee80211_leave_ibss,
4792         .set_mcast_rate = ieee80211_set_mcast_rate,
4793         .set_wiphy_params = ieee80211_set_wiphy_params,
4794         .set_tx_power = ieee80211_set_tx_power,
4795         .get_tx_power = ieee80211_get_tx_power,
4796         .rfkill_poll = ieee80211_rfkill_poll,
4797         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4798         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4799         .set_power_mgmt = ieee80211_set_power_mgmt,
4800         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4801         .remain_on_channel = ieee80211_remain_on_channel,
4802         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4803         .mgmt_tx = ieee80211_mgmt_tx,
4804         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4805         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4806         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4807         .update_mgmt_frame_registrations =
4808                 ieee80211_update_mgmt_frame_registrations,
4809         .set_antenna = ieee80211_set_antenna,
4810         .get_antenna = ieee80211_get_antenna,
4811         .set_rekey_data = ieee80211_set_rekey_data,
4812         .tdls_oper = ieee80211_tdls_oper,
4813         .tdls_mgmt = ieee80211_tdls_mgmt,
4814         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4815         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4816         .probe_client = ieee80211_probe_client,
4817         .set_noack_map = ieee80211_set_noack_map,
4818 #ifdef CONFIG_PM
4819         .set_wakeup = ieee80211_set_wakeup,
4820 #endif
4821         .get_channel = ieee80211_cfg_get_channel,
4822         .start_radar_detection = ieee80211_start_radar_detection,
4823         .end_cac = ieee80211_end_cac,
4824         .channel_switch = ieee80211_channel_switch,
4825         .set_qos_map = ieee80211_set_qos_map,
4826         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4827         .add_tx_ts = ieee80211_add_tx_ts,
4828         .del_tx_ts = ieee80211_del_tx_ts,
4829         .start_nan = ieee80211_start_nan,
4830         .stop_nan = ieee80211_stop_nan,
4831         .nan_change_conf = ieee80211_nan_change_conf,
4832         .add_nan_func = ieee80211_add_nan_func,
4833         .del_nan_func = ieee80211_del_nan_func,
4834         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4835         .tx_control_port = ieee80211_tx_control_port,
4836         .get_txq_stats = ieee80211_get_txq_stats,
4837         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4838         .start_pmsr = ieee80211_start_pmsr,
4839         .abort_pmsr = ieee80211_abort_pmsr,
4840         .probe_mesh_link = ieee80211_probe_mesh_link,
4841         .set_tid_config = ieee80211_set_tid_config,
4842         .reset_tid_config = ieee80211_reset_tid_config,
4843         .set_sar_specs = ieee80211_set_sar_specs,
4844         .color_change = ieee80211_color_change,
4845         .set_radar_background = ieee80211_set_radar_background,
4846         .add_intf_link = ieee80211_add_intf_link,
4847         .del_intf_link = ieee80211_del_intf_link,
4848         .add_link_station = ieee80211_add_link_station,
4849         .mod_link_station = ieee80211_mod_link_station,
4850         .del_link_station = ieee80211_del_link_station,
4851 };